56374647365 has 4 divisors (see below), whose sum is σ = 67649576844. Its totient is φ = 45099717888.

The previous prime is 56374647361. The next prime is 56374647379.

56374647365 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37872662881 + 18501984484 = 194609^2 + 136022^2 .

It is a cyclic number.

It is not a de Polignac number, because 56374647365 - 2² = 56374647361 is a prime.

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 56374647365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56374647361) 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, 5637464732 + ... + 5637464741.

It is an arithmetic number, because the mean of its divisors is an integer number (16912394211).

Almost surely, 2^56374647365 is an apocalyptic number.

It is an amenable number.

56374647365 is a deficient number, since it is larger than the sum of its proper divisors (11274929479).

56374647365 is a wasteful number, since it uses less digits than its factorization.

56374647365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11274929478.

The product of its digits is 38102400, while the sum is 56.

The spelling of 56374647365 in words is "fifty-six billion, three hundred seventy-four million, six hundred forty-seven thousand, three hundred sixty-five".