56855583 has 12 divisors (see below), whose sum is σ = 82210960. Its totient is φ = 37863936.

The previous prime is 56855567. The next prime is 56855641. The reversal of 56855583 is 38555865.

56855583 is a `hidden beast` number, since 5 + 68 + 5 + 5 + 583 = 666.

It is not a de Polignac number, because 56855583 - 2⁴ = 56855567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56855683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7638 + ... + 13116.

Almost surely, 2^56855583 is an apocalyptic number.

56855583 is a deficient number, since it is larger than the sum of its proper divisors (25355377).

56855583 is a wasteful number, since it uses less digits than its factorization.

56855583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638 (or 6635 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The square root of 56855583 is about 7540.2641200425. The cubic root of 56855583 is about 384.5248154447.

The spelling of 56855583 in words is "fifty-six million, eight hundred fifty-five thousand, five hundred eighty-three".