56570923 has 4 divisors (see below), whose sum is σ = 59548360. Its totient is φ = 53593488.

The previous prime is 56570893. The next prime is 56570933. The reversal of 56570923 is 32907565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56570923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56570933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1488690 + ... + 1488727.

It is an arithmetic number, because the mean of its divisors is an integer number (14887090).

Almost surely, 2^56570923 is an apocalyptic number.

56570923 is a deficient number, since it is larger than the sum of its proper divisors (2977437).

56570923 is a wasteful number, since it uses less digits than its factorization.

56570923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977436.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 56570923 is about 7521.3644373877. The cubic root of 56570923 is about 383.8820053952.

The spelling of 56570923 in words is "fifty-six million, five hundred seventy thousand, nine hundred twenty-three".