25135664 has 20 divisors (see below), whose sum is σ = 49060104. Its totient is φ = 12475008.

The previous prime is 25135661. The next prime is 25135679. The reversal of 25135664 is 46653152.

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 25135664.

It is not an unprimeable number, because it can be changed into a prime (25135661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3542 + ... + 7925.

Almost surely, 2^25135664 is an apocalyptic number.

It is an amenable number.

25135664 is a deficient number, since it is larger than the sum of its proper divisors (23924440).

25135664 is a wasteful number, since it uses less digits than its factorization.

25135664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11612 (or 11606 counting only the distinct ones).

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

The square root of 25135664 is about 5013.5480450475. The cubic root of 25135664 is about 292.9297318943.

The spelling of 25135664 in words is "twenty-five million, one hundred thirty-five thousand, six hundred sixty-four".