12564544 has 28 divisors (see below), whose sum is σ = 25132284. Its totient is φ = 6232064.

The previous prime is 12564527. The next prime is 12564599. The reversal of 12564544 is 44546521.

It is a happy number.

12564544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9000000 + 3564544 = 3000^2 + 1888^2 .

It is a congruent number.

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, 8052 + ... + 9484.

Almost surely, 2^12564544 is an apocalyptic number.

It is an amenable number.

12564544 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12564544 is a wasteful number, since it uses less digits than its factorization.

12564544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582 (or 1572 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 12564544 is about 3544.6500532493. The cubic root of 12564544 is about 232.4782050715.

The spelling of 12564544 in words is "twelve million, five hundred sixty-four thousand, five hundred forty-four".