25604625 has 16 divisors (see below), whose sum is σ = 42606720. Its totient is φ = 13655600.

The previous prime is 25604599. The next prime is 25604633. The reversal of 25604625 is 52640652.

It is not a de Polignac number, because 25604625 - 2⁶ = 25604561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25604592 and 25604601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33765 + ... + 34514.

It is an arithmetic number, because the mean of its divisors is an integer number (2662920).

Almost surely, 2^25604625 is an apocalyptic number.

25604625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25604625 is a deficient number, since it is larger than the sum of its proper divisors (17002095).

25604625 is an equidigital number, since it uses as much as digits as its factorization.

25604625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68297 (or 68287 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 25604625 is about 5060.1012835713. The cubic root of 25604625 is about 294.7402674117.

The spelling of 25604625 in words is "twenty-five million, six hundred four thousand, six hundred twenty-five".