56117278117 has 4 divisors (see below), whose sum is σ = 56324353216. Its totient is φ = 55910203020.

The previous prime is 56117278079. The next prime is 56117278123. The reversal of 56117278117 is 71187271165.

It is a happy number.

56117278117 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56117278117 - 2²³ = 56108889509 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 (56117278187) 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, 103537143 + ... + 103537684.

It is an arithmetic number, because the mean of its divisors is an integer number (14081088304).

Almost surely, 2^56117278117 is an apocalyptic number.

It is an amenable number.

56117278117 is a deficient number, since it is larger than the sum of its proper divisors (207075099).

56117278117 is a wasteful number, since it uses less digits than its factorization.

56117278117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207075098.

The product of its digits is 164640, while the sum is 46.

The spelling of 56117278117 in words is "fifty-six billion, one hundred seventeen million, two hundred seventy-eight thousand, one hundred seventeen".