56997479965 has 8 divisors (see below), whose sum is σ = 68401562040. Its totient is φ = 45594926592.

The previous prime is 56997479953. The next prime is 56997479989.

56997479965 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 17410010809 + 39587469156 = 131947^2 + 198966^2 .

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 56997479965 - 2⁷ = 56997479837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56997479891 and 56997479900.

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, 298480 + ... + 450649.

It is an arithmetic number, because the mean of its divisors is an integer number (8550195255).

Almost surely, 2^56997479965 is an apocalyptic number.

It is an amenable number.

56997479965 is a deficient number, since it is larger than the sum of its proper divisors (11404082075).

56997479965 is a wasteful number, since it uses less digits than its factorization.

56997479965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764351.

The product of its digits is 1157360400, while the sum is 76.

The spelling of 56997479965 in words is "fifty-six billion, nine hundred ninety-seven million, four hundred seventy-nine thousand, nine hundred sixty-five".