57566969 has 4 divisors (see below), whose sum is σ = 59424000. Its totient is φ = 55709940.

The previous prime is 57566959. The next prime is 57566983. The reversal of 57566969 is 96966575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57566969 - 2²⁴ = 40789753 is a prime.

It is a super-2 number, since 2×57566969² = 6627911839693922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57566969.

It is not an unprimeable number, because it can be changed into a prime (57566939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928469 + ... + 928530.

It is an arithmetic number, because the mean of its divisors is an integer number (14856000).

Almost surely, 2^57566969 is an apocalyptic number.

It is an amenable number.

57566969 is a deficient number, since it is larger than the sum of its proper divisors (1857031).

57566969 is a wasteful number, since it uses less digits than its factorization.

57566969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857030.

The product of its digits is 3061800, while the sum is 53.

The square root of 57566969 is about 7587.2899641440. The cubic root of 57566969 is about 386.1219177824.

The spelling of 57566969 in words is "fifty-seven million, five hundred sixty-six thousand, nine hundred sixty-nine".