25365664 has 24 divisors (see below), whose sum is σ = 50688288. Its totient is φ = 12492480.

The previous prime is 25365629. The next prime is 25365677. The reversal of 25365664 is 46656352.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3772 + ... + 8059.

It is an arithmetic number, because the mean of its divisors is an integer number (2112012).

Almost surely, 2^25365664 is an apocalyptic number.

It is an amenable number.

25365664 is a deficient number, since it is larger than the sum of its proper divisors (25322624).

25365664 is a wasteful number, since it uses less digits than its factorization.

25365664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11908 (or 11900 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 25365664 is about 5036.4336588503. The cubic root of 25365664 is about 293.8204898588.

The spelling of 25365664 in words is "twenty-five million, three hundred sixty-five thousand, six hundred sixty-four".