56837615013 has 48 divisors (see below), whose sum is σ = 85938914880. Its totient is φ = 36165830400.

The previous prime is 56837614991. The next prime is 56837615017. The reversal of 56837615013 is 31051673865.

56837615013 is a `hidden beast` number, since 5 + 6 + 83 + 7 + 61 + 501 + 3 = 666.

It is not a de Polignac number, because 56837615013 - 2¹³ = 56837606821 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 56837615013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56837615017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4587495 + ... + 4599867.

It is an arithmetic number, because the mean of its divisors is an integer number (1790394060).

Almost surely, 2^56837615013 is an apocalyptic number.

It is an amenable number.

56837615013 is a deficient number, since it is larger than the sum of its proper divisors (29101299867).

56837615013 is a wasteful number, since it uses less digits than its factorization.

56837615013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690 (or 12687 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 56837615013 in words is "fifty-six billion, eight hundred thirty-seven million, six hundred fifteen thousand, thirteen".