Order 400.
60 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center | C4 | C2×D25 |
| commutator, cosocle | C2×C25 | C23 |
| Frattini, socle | C2×C5 | C22×D5 |
| Fitting | C2×C4×C25 | C2 |
| hypercenter | C2×C4 | D25 |
| hypocenter | C25 | #41 |
| LCS | G ▷ C2×C25 ▷ C25 | |
| UCS | C1 ◁ C4 ◁ C2×C4 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×C4×C25 | C2 | semidirect |
| 2. C22⋊D25 | C2 | semidirect |
| 3. D100 | C2 | semidirect |
| 4. C4×D25 | C2 | semidirect |
| 5. Dic50 | C2 | semidirect |
| 20. C25 | #41 | semidirect |
| 34. C2×C4 | D25 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C4×C25 | 2 |
| C22⋊D25 | 2 |
| D100 | 2 |
| C4×D25 | 2 |
| Dic50 | 2 |
| #709 | 5 |