56677895137 has 4 divisors (see below), whose sum is σ = 56738127636. Its totient is φ = 56617662640.

The previous prime is 56677895129. The next prime is 56677895159. The reversal of 56677895137 is 73159877665.

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 42914851281 + 13763043856 = 207159^2 + 117316^2 .

It is a cyclic number.

It is not a de Polignac number, because 56677895137 - 2³ = 56677895129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56677895117) 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, 30114838 + ... + 30116719.

It is an arithmetic number, because the mean of its divisors is an integer number (14184531909).

Almost surely, 2^56677895137 is an apocalyptic number.

It is an amenable number.

56677895137 is a deficient number, since it is larger than the sum of its proper divisors (60232499).

56677895137 is an equidigital number, since it uses as much as digits as its factorization.

56677895137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60232498.

The product of its digits is 66679200, while the sum is 64.

The spelling of 56677895137 in words is "fifty-six billion, six hundred seventy-seven million, eight hundred ninety-five thousand, one hundred thirty-seven".