25289972 has 24 divisors (see below), whose sum is σ = 47779200. Its totient is φ = 11676896.

The previous prime is 25289959. The next prime is 25289983. The reversal of 25289972 is 27998252.

It is a congruent number.

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, 2072 + ... + 7407.

It is an arithmetic number, because the mean of its divisors is an integer number (1990800).

Almost surely, 2^25289972 is an apocalyptic number.

It is an amenable number.

25289972 is a deficient number, since it is larger than the sum of its proper divisors (22489228).

25289972 is a wasteful number, since it uses less digits than its factorization.

25289972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9535 (or 9533 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 25289972 is about 5028.9136003714. The cubic root of 25289972 is about 293.5279419121.

The spelling of 25289972 in words is "twenty-five million, two hundred eighty-nine thousand, nine hundred seventy-two".