Order 27500.
30 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | Dic1375 | — | 5 | 1 | no | maximal |
| 2 | Dic625 | — | 11 | 1 | no | maximal, Hall |
| 3 | C2×C11×C625 | C2 | 1 | 1 | yes | maximal, characteristic |
| 4 | C2×C11×C125 | D5 | 1 | 1 | yes | characteristic |
| 5 | C11×C625 | C4 | 1 | 1 | yes | characteristic, complemented, Hall |
| 6 | C11×C125 | Dic5 | 1 | 1 | yes | characteristic |
| 7 | C2×C625 | D11 | 1 | 1 | yes | characteristic |
| 8 | Dic275 | — | 25 | 1 | no | — |
| 9 | C625 | Dic11 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 10 | C2×C11×C25 | D25 | 1 | 1 | yes | characteristic |
| 11 | Dic125 | — | 55 | 1 | no | — |
| 12 | C11×C25 | Dic25 | 1 | 1 | yes | characteristic |
| 13 | C2×C125 | D55 | 1 | 1 | yes | characteristic |
| 14 | Dic55 | — | 125 | 1 | no | — |
| 15 | C125 | Dic55 | 1 | 1 | yes | characteristic |
| 16 | C2×C5×C11 | D125 | 1 | 1 | yes | characteristic |
| 17 | Dic25 | — | 275 | 1 | no | — |
| 18 | C5×C11 | Dic125 | 1 | 1 | yes | characteristic |
| 19 | C2×C25 | D275 | 1 | 1 | yes | characteristic |
| 20 | Dic11 | — | 625 | 1 | no | Hall |
| 21 | C25 | Dic275 | 1 | 1 | yes | characteristic |
| 22 | C2×C11 | D625 | 1 | 1 | yes | characteristic |
| 23 | Dic5 | — | 1375 | 1 | no | — |
| 24 | C11 | Dic625 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 25 | C2×C5 | D1375 | 1 | 1 | yes | characteristic |
| 26 | C5 | Dic1375 | 1 | 1 | yes | characteristic |
| 27 | C4 | — | 6875 | 1 | no | Sylow |
| 28 | C2 | D6875 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2 | D6875 |
| commutator, hypocenter | C11×C625 | C4 |
| Frattini | C2×C125 | D55 |
| Fitting, cosocle | C2×C11×C625 | C2 |
| socle, prime radical | C2×C5×C11 | D125 |
| LCS | G ▷ C11×C625 | |
| UCS | C1 ◁ C2 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 5. C11×C625 | C4 | semidirect |
| 9. C625 | Dic11 | semidirect |
| 24. C11 | Dic625 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| Dic1375 | 5 |
| Dic625 | 11 |
| C2×C11×C625 | 2 |