56872555 has 16 divisors (see below), whose sum is σ = 69501600. Its totient is φ = 44669952.

The previous prime is 56872549. The next prime is 56872559. The reversal of 56872555 is 55527865.

It is a cyclic number.

It is not a de Polignac number, because 56872555 - 2³ = 56872547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56872559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71872 + ... + 72658.

It is an arithmetic number, because the mean of its divisors is an integer number (4343850).

Almost surely, 2^56872555 is an apocalyptic number.

56872555 is a deficient number, since it is larger than the sum of its proper divisors (12629045).

56872555 is a wasteful number, since it uses less digits than its factorization.

56872555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 420000, while the sum is 43.

The square root of 56872555 is about 7541.3894608355. The cubic root of 56872555 is about 384.5630732291.

The spelling of 56872555 in words is "fifty-six million, eight hundred seventy-two thousand, five hundred fifty-five".