56856334085 has 4 divisors (see below), whose sum is σ = 68227600908. Its totient is φ = 45485067264.

The previous prime is 56856334069. The next prime is 56856334091. The reversal of 56856334085 is 58043365865.

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 14927219329 + 41929114756 = 122177^2 + 204766^2 .

It is a cyclic number.

It is not a de Polignac number, because 56856334085 - 2⁴ = 56856334069 is a prime.

It is a Duffinian number.

It is a congruent 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, 5685633404 + ... + 5685633413.

It is an arithmetic number, because the mean of its divisors is an integer number (17056900227).

Almost surely, 2^56856334085 is an apocalyptic number.

It is an amenable number.

56856334085 is a deficient number, since it is larger than the sum of its proper divisors (11371266823).

56856334085 is a wasteful number, since it uses less digits than its factorization.

56856334085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11371266822.

The product of its (nonzero) digits is 10368000, while the sum is 53.

The spelling of 56856334085 in words is "fifty-six billion, eight hundred fifty-six million, three hundred thirty-four thousand, eighty-five".