25634572 has 24 divisors (see below), whose sum is σ = 50001840. Its totient is φ = 11427840.

The previous prime is 25634561. The next prime is 25634603. The reversal of 25634572 is 27543652.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8629 + ... + 11212.

It is an arithmetic number, because the mean of its divisors is an integer number (2083410).

Almost surely, 2^25634572 is an apocalyptic number.

It is an amenable number.

25634572 is a deficient number, since it is larger than the sum of its proper divisors (24367268).

25634572 is a wasteful number, since it uses less digits than its factorization.

25634572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19881 (or 19879 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 25634572 is about 5063.0595493239. The cubic root of 25634572 is about 294.8551313976.

The spelling of 25634572 in words is "twenty-five million, six hundred thirty-four thousand, five hundred seventy-two".