25564264 has 32 divisors (see below), whose sum is σ = 52488000. Its totient is φ = 11576320.

The previous prime is 25564261. The next prime is 25564303. The reversal of 25564264 is 46246552.

It is not an unprimeable number, because it can be changed into a prime (25564261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39189 + ... + 39835.

It is an arithmetic number, because the mean of its divisors is an integer number (1640250).

Almost surely, 2^25564264 is an apocalyptic number.

It is an amenable number.

25564264 is an abundant number, since it is smaller than the sum of its proper divisors (26923736).

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

25564264 is a wasteful number, since it uses less digits than its factorization.

25564264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1109 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

The square root of 25564264 is about 5056.1115494024. Note that the first 3 decimals coincide. The cubic root of 25564264 is about 294.5853179571.

The spelling of 25564264 in words is "twenty-five million, five hundred sixty-four thousand, two hundred sixty-four".