72564504 has 32 divisors (see below), whose sum is σ = 182470320. Its totient is φ = 24046976.

The previous prime is 72564487. The next prime is 72564509. The reversal of 72564504 is 40546527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72564509) 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 7 ways as a sum of consecutive naturals, for example, 4587 + ... + 12890.

Almost surely, 2^72564504 is an apocalyptic number.

It is an amenable number.

72564504 is an abundant number, since it is smaller than the sum of its proper divisors (109905816).

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

72564504 is a wasteful number, since it uses less digits than its factorization.

72564504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17659 (or 17655 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 72564504 is about 8518.4801461294. The cubic root of 72564504 is about 417.1011721922.

The spelling of 72564504 in words is "seventy-two million, five hundred sixty-four thousand, five hundred four".