56637705911 has 4 divisors (see below), whose sum is σ = 56874684000. Its totient is φ = 56400727824.

The previous prime is 56637705871. The next prime is 56637705923. The reversal of 56637705911 is 11950773665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56637705911 - 2⁶ = 56637705847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56637705911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56637705941) 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, 118488686 + ... + 118489163.

It is an arithmetic number, because the mean of its divisors is an integer number (14218671000).

Almost surely, 2^56637705911 is an apocalyptic number.

56637705911 is a deficient number, since it is larger than the sum of its proper divisors (236978089).

56637705911 is a wasteful number, since it uses less digits than its factorization.

56637705911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236978088.

The product of its (nonzero) digits is 1190700, while the sum is 50.

The spelling of 56637705911 in words is "fifty-six billion, six hundred thirty-seven million, seven hundred five thousand, nine hundred eleven".