56816555113 has 4 divisors (see below), whose sum is σ = 56817213520. Its totient is φ = 56815896708.

The previous prime is 56816555099. The next prime is 56816555119. The reversal of 56816555113 is 31155561865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56816555113 - 2³³ = 48226620521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56816555119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175995 + ... + 380272.

It is an arithmetic number, because the mean of its divisors is an integer number (14204303380).

Almost surely, 2^56816555113 is an apocalyptic number.

It is an amenable number.

56816555113 is a deficient number, since it is larger than the sum of its proper divisors (658407).

56816555113 is a wasteful number, since it uses less digits than its factorization.

56816555113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658406.

The product of its digits is 540000, while the sum is 46.

The spelling of 56816555113 in words is "fifty-six billion, eight hundred sixteen million, five hundred fifty-five thousand, one hundred thirteen".