56980655 has 4 divisors (see below), whose sum is σ = 68376792. Its totient is φ = 45584520.

The previous prime is 56980597. The next prime is 56980663. The reversal of 56980655 is 55608965.

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

It is not a de Polignac number, because 56980655 - 2²⁴ = 40203439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5698061 + ... + 5698070.

It is an arithmetic number, because the mean of its divisors is an integer number (17094198).

Almost surely, 2^56980655 is an apocalyptic number.

56980655 is a deficient number, since it is larger than the sum of its proper divisors (11396137).

56980655 is a wasteful number, since it uses less digits than its factorization.

56980655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11396136.

The product of its (nonzero) digits is 324000, while the sum is 44.

The square root of 56980655 is about 7548.5531726285. The cubic root of 56980655 is about 384.8065706257.

The spelling of 56980655 in words is "fifty-six million, nine hundred eighty thousand, six hundred fifty-five".