56979565 has 8 divisors (see below), whose sum is σ = 68785920. Its totient is φ = 45310032.

The previous prime is 56979521. The next prime is 56979599. The reversal of 56979565 is 56597965.

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

It is a cyclic number.

It is not a de Polignac number, because 56979565 - 2⁷ = 56979437 is a prime.

It is a congruent 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, 33285 + ... + 34954.

It is an arithmetic number, because the mean of its divisors is an integer number (8598240).

Almost surely, 2^56979565 is an apocalyptic number.

It is an amenable number.

56979565 is a deficient number, since it is larger than the sum of its proper divisors (11806355).

56979565 is a wasteful number, since it uses less digits than its factorization.

56979565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68411.

The product of its digits is 2551500, while the sum is 52.

The square root of 56979565 is about 7548.4809730170. The cubic root of 56979565 is about 384.8041169167.

The spelling of 56979565 in words is "fifty-six million, nine hundred seventy-nine thousand, five hundred sixty-five".