72555056 has 40 divisors (see below), whose sum is σ = 161251584. Its totient is φ = 30980160.

The previous prime is 72555029. The next prime is 72555079. The reversal of 72555056 is 65055527.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33791 + ... + 35873.

Almost surely, 2^72555056 is an apocalyptic number.

It is an amenable number.

72555056 is an abundant number, since it is smaller than the sum of its proper divisors (88696528).

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

72555056 is a wasteful number, since it uses less digits than its factorization.

72555056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 72555056 is about 8517.9255690573. The cubic root of 72555056 is about 417.0830690209.

The spelling of 72555056 in words is "seventy-two million, five hundred fifty-five thousand, fifty-six".