25012972 has 6 divisors (see below), whose sum is σ = 43772708. Its totient is φ = 12506484.

The previous prime is 25012969. The next prime is 25012973. The reversal of 25012972 is 27921052.

It is a self number, because there is not a number n which added to its sum of digits gives 25012972.

It is not an unprimeable number, because it can be changed into a prime (25012973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3126618 + ... + 3126625.

Almost surely, 2^25012972 is an apocalyptic number.

It is an amenable number.

25012972 is a deficient number, since it is larger than the sum of its proper divisors (18759736).

25012972 is a wasteful number, since it uses less digits than its factorization.

25012972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253247 (or 6253245 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 25012972 is about 5001.2970317709. The cubic root of 25012972 is about 292.4523388874.

The spelling of 25012972 in words is "twenty-five million, twelve thousand, nine hundred seventy-two".