25564272 has 40 divisors (see below), whose sum is σ = 69519360. Its totient is φ = 8072640.

The previous prime is 25564261. The next prime is 25564303. The reversal of 25564272 is 27246552.

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, 13104 + ... + 14927.

It is an arithmetic number, because the mean of its divisors is an integer number (1737984).

Almost surely, 2^25564272 is an apocalyptic number.

It is an amenable number.

25564272 is an abundant number, since it is smaller than the sum of its proper divisors (43955088).

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

25564272 is a wasteful number, since it uses less digits than its factorization.

25564272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28061 (or 28055 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 25564272 is about 5056.1123405241. The cubic root of 25564272 is about 294.5853486860.

The spelling of 25564272 in words is "twenty-five million, five hundred sixty-four thousand, two hundred seventy-two".