56558665 has 8 divisors (see below), whose sum is σ = 67923648. Its totient is φ = 45211440.

The previous prime is 56558657. The next prime is 56558701. The reversal of 56558665 is 56685565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56558665 - 2³ = 56558657 is a prime.

It is a Duffinian number.

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, 4050 + ... + 11380.

It is an arithmetic number, because the mean of its divisors is an integer number (8490456).

Almost surely, 2^56558665 is an apocalyptic number.

It is an amenable number.

56558665 is a deficient number, since it is larger than the sum of its proper divisors (11364983).

56558665 is a wasteful number, since it uses less digits than its factorization.

56558665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8879.

The product of its digits is 1080000, while the sum is 46.

The square root of 56558665 is about 7520.5495144969. The cubic root of 56558665 is about 383.8542763942.

The spelling of 56558665 in words is "fifty-six million, five hundred fifty-eight thousand, six hundred sixty-five".