25157256 has 16 divisors (see below), whose sum is σ = 62893200. Its totient is φ = 8385744.

The previous prime is 25157233. The next prime is 25157269. The reversal of 25157256 is 65275152.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524086 + ... + 524133.

It is an arithmetic number, because the mean of its divisors is an integer number (3930825).

Almost surely, 2^25157256 is an apocalyptic number.

It is an amenable number.

25157256 is an abundant number, since it is smaller than the sum of its proper divisors (37735944).

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

25157256 is a wasteful number, since it uses less digits than its factorization.

25157256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048228 (or 1048224 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 25157256 is about 5015.7009480231. The cubic root of 25157256 is about 293.0135852399.

The spelling of 25157256 in words is "twenty-five million, one hundred fifty-seven thousand, two hundred fifty-six".