56057475065 has 4 divisors (see below), whose sum is σ = 67268970084. Its totient is φ = 44845980048.

The previous prime is 56057475043. The next prime is 56057475091.

56057475065 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 26381555776 + 29675919289 = 162424^2 + 172267^2 .

It is a cyclic number.

It is not a de Polignac number, because 56057475065 - 2²² = 56053280761 is a prime.

It is a Duffinian 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, 5605747502 + ... + 5605747511.

It is an arithmetic number, because the mean of its divisors is an integer number (16817242521).

Almost surely, 2^56057475065 is an apocalyptic number.

It is an amenable number.

56057475065 is a deficient number, since it is larger than the sum of its proper divisors (11211495019).

56057475065 is a wasteful number, since it uses less digits than its factorization.

56057475065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11211495018.

The product of its (nonzero) digits is 4410000, while the sum is 50.

The spelling of 56057475065 in words is "fifty-six billion, fifty-seven million, four hundred seventy-five thousand, sixty-five".