56558775 has 48 divisors (see below), whose sum is σ = 115103744. Its totient is φ = 23863680.

The previous prime is 56558767. The next prime is 56558807. The reversal of 56558775 is 57785565.

It is not a de Polignac number, because 56558775 - 2³ = 56558767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2682 + ... + 10968.

Almost surely, 2^56558775 is an apocalyptic number.

56558775 is an abundant number, since it is smaller than the sum of its proper divisors (58544969).

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

56558775 is a wasteful number, since it uses less digits than its factorization.

56558775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8320 (or 8315 counting only the distinct ones).

The product of its digits is 1470000, while the sum is 48.

The square root of 56558775 is about 7520.5568277888. The cubic root of 56558775 is about 383.8545252446.

It can be divided in two parts, 565 and 58775, that added together give a triangular number (59340 = T₃₄₄).

The spelling of 56558775 in words is "fifty-six million, five hundred fifty-eight thousand, seven hundred seventy-five".