56955291779 has 4 divisors (see below), whose sum is σ = 56955796320. Its totient is φ = 56954787240.

The previous prime is 56955291773. The next prime is 56955291781. The reversal of 56955291779 is 97719255965.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56955291779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56955291773) 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, 3494 + ... + 337524.

It is an arithmetic number, because the mean of its divisors is an integer number (14238949080).

Almost surely, 2^56955291779 is an apocalyptic number.

56955291779 is a deficient number, since it is larger than the sum of its proper divisors (504541).

56955291779 is a wasteful number, since it uses less digits than its factorization.

56955291779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504540.

The product of its digits is 53581500, while the sum is 65.

The spelling of 56955291779 in words is "fifty-six billion, nine hundred fifty-five million, two hundred ninety-one thousand, seven hundred seventy-nine".