56117566133 has 4 divisors (see below), whose sum is σ = 56122610700. Its totient is φ = 56112521568.

The previous prime is 56117566129. The next prime is 56117566171. The reversal of 56117566133 is 33166571165.

56117566133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12119147569 + 43998418564 = 110087^2 + 209758^2 .

It is a cyclic number.

It is not a de Polignac number, because 56117566133 - 2² = 56117566129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56117566103) 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, 2505560 + ... + 2527857.

It is an arithmetic number, because the mean of its divisors is an integer number (14030652675).

Almost surely, 2^56117566133 is an apocalyptic number.

It is an amenable number.

56117566133 is a deficient number, since it is larger than the sum of its proper divisors (5044567).

56117566133 is a wasteful number, since it uses less digits than its factorization.

56117566133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044566.

The product of its digits is 340200, while the sum is 44.

The spelling of 56117566133 in words is "fifty-six billion, one hundred seventeen million, five hundred sixty-six thousand, one hundred thirty-three".