56013912805 has 16 divisors (see below), whose sum is σ = 68789255040. Its totient is φ = 43763041728.

The previous prime is 56013912793. The next prime is 56013912811. The reversal of 56013912805 is 50821931065.

56013912805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 56013912805 - 2¹⁵ = 56013880037 is a prime.

It is a super-2 number, since 2×56013912805² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2211151 + ... + 2236339.

It is an arithmetic number, because the mean of its divisors is an integer number (4299328440).

Almost surely, 2^56013912805 is an apocalyptic number.

It is an amenable number.

56013912805 is a deficient number, since it is larger than the sum of its proper divisors (12775342235).

56013912805 is a wasteful number, since it uses less digits than its factorization.

56013912805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35580.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 56013912805 in words is "fifty-six billion, thirteen million, nine hundred twelve thousand, eight hundred five".