56213070771 has 64 divisors (see below), whose sum is σ = 90838089216. Its totient is φ = 30461184000.

The previous prime is 56213070751. The next prime is 56213070773. The reversal of 56213070771 is 17707031265.

It is not a de Polignac number, because 56213070771 - 2¹⁵ = 56213038003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (56213070773) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3595371 + ... + 3610971.

It is an arithmetic number, because the mean of its divisors is an integer number (1419345144).

Almost surely, 2^56213070771 is an apocalyptic number.

56213070771 is a deficient number, since it is larger than the sum of its proper divisors (34625018445).

56213070771 is a wasteful number, since it uses less digits than its factorization.

56213070771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15892.

The product of its (nonzero) digits is 61740, while the sum is 39.

The spelling of 56213070771 in words is "fifty-six billion, two hundred thirteen million, seventy thousand, seven hundred seventy-one".