25163564 has 12 divisors (see below), whose sum is σ = 45951024. Its totient is φ = 12034704.

The previous prime is 25163549. The next prime is 25163569. The reversal of 25163564 is 46536152.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25163564.

It is not an unprimeable number, because it can be changed into a prime (25163569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136667 + ... + 136850.

It is an arithmetic number, because the mean of its divisors is an integer number (3829252).

Almost surely, 2^25163564 is an apocalyptic number.

It is an amenable number.

25163564 is a deficient number, since it is larger than the sum of its proper divisors (20787460).

25163564 is a wasteful number, since it uses less digits than its factorization.

25163564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273544 (or 273542 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 25163564 is about 5016.3297339788. The cubic root of 25163564 is about 293.0380735390.

The spelling of 25163564 in words is "twenty-five million, one hundred sixty-three thousand, five hundred sixty-four".