56544564 has 24 divisors (see below), whose sum is σ = 132421408. Its totient is φ = 18779040.

The previous prime is 56544539. The next prime is 56544569. The reversal of 56544564 is 46544565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56544569) 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, 5182 + ... + 11829.

Almost surely, 2^56544564 is an apocalyptic number.

It is an amenable number.

56544564 is an abundant number, since it is smaller than the sum of its proper divisors (75876844).

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

56544564 is a wasteful number, since it uses less digits than its factorization.

56544564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17295 (or 17293 counting only the distinct ones).

The product of its digits is 288000, while the sum is 39.

The square root of 56544564 is about 7519.6119580734. The cubic root of 56544564 is about 383.8223733602.

Subtracting from 56544564 its reverse (46544565), we obtain a palindrome (9999999).

The spelling of 56544564 in words is "fifty-six million, five hundred forty-four thousand, five hundred sixty-four".