The folowing table expresses '25' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|
| 2 | 11001 | 11,10 | 1 | ||
| 3 | 221 | 12,10 | 1 | ||
| 4 | 121 | 10 | 1 | ||
| 5 | 100 | 1 | |||
| 6 | 41 | 5 | |||
| 7 | 34,10 | 1 | |||
| 8 | 31 | 4 | |||
| 9 | 27,10 | 1 | |||
| 10 | 25 | 7 | |||
| 11 | 23 | 5 | |||
| 12 | 21 | 3 | |||
| 13 | 1C,10 | 1 | |||
| 14 | 1B | C | |||
| 15 | 1A | B | |||
| 16 | 19 | A |
Factors: 52
25 is in the Pythagorean Triples: (7, 24, 25), (25, 312, 313).
25 is the atomic weight of Manganese (Mn).