25623972 has 48 divisors (see below), whose sum is σ = 72475200. Its totient is φ = 7764480.

The previous prime is 25623953. The next prime is 25623973. The reversal of 25623972 is 27932652.

25623972 is a `hidden beast` number, since 2 + 562 + 3 + 97 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25623973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9597 + ... + 11972.

It is an arithmetic number, because the mean of its divisors is an integer number (1509900).

Almost surely, 2^25623972 is an apocalyptic number.

25623972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25623972 is an abundant number, since it is smaller than the sum of its proper divisors (46851228).

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

25623972 is a wasteful number, since it uses less digits than its factorization.

25623972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21593 (or 21585 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 25623972 is about 5062.0126432082. The cubic root of 25623972 is about 294.8144845283.

The spelling of 25623972 in words is "twenty-five million, six hundred twenty-three thousand, nine hundred seventy-two".