25265538 has 12 divisors (see below), whose sum is σ = 54742038. Its totient is φ = 8421840.

The previous prime is 25265521. The next prime is 25265549. The reversal of 25265538 is 83556252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16426809 + 8838729 = 4053^2 + 2973^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701803 + ... + 701838.

Almost surely, 2^25265538 is an apocalyptic number.

25265538 is an abundant number, since it is smaller than the sum of its proper divisors (29476500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25265538 is a wasteful number, since it uses less digits than its factorization.

25265538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403649 (or 1403646 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 25265538 is about 5026.4836615670. The cubic root of 25265538 is about 293.4333804163.

The spelling of 25265538 in words is "twenty-five million, two hundred sixty-five thousand, five hundred thirty-eight".