25557132 has 24 divisors (see below), whose sum is σ = 60390400. Its totient is φ = 8410896.

The previous prime is 25557127. The next prime is 25557157. The reversal of 25557132 is 23175552.

It is a self number, because there is not a number n which added to its sum of digits gives 25557132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12532 + ... + 14427.

Almost surely, 2^25557132 is an apocalyptic number.

It is an amenable number.

25557132 is an abundant number, since it is smaller than the sum of its proper divisors (34833268).

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

25557132 is a wasteful number, since it uses less digits than its factorization.

25557132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27045 (or 27043 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 25557132 is about 5055.4062151325. The cubic root of 25557132 is about 294.5579206249.

The spelling of 25557132 in words is "twenty-five million, five hundred fifty-seven thousand, one hundred thirty-two".