56729925513 has 6 divisors (see below), whose sum is σ = 81943225754. Its totient is φ = 37819950336.

The previous prime is 56729925481. The next prime is 56729925533. The reversal of 56729925513 is 31552992765.

56729925513 is a `hidden beast` number, since 5 + 67 + 29 + 9 + 2 + 551 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53811008784 + 2918916729 = 231972^2 + 54027^2 .

It is not a de Polignac number, because 56729925513 - 2⁵ = 56729925481 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 56729925513.

It is not an unprimeable number, because it can be changed into a prime (56729925533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3151662520 + ... + 3151662537.

Almost surely, 2^56729925513 is an apocalyptic number.

It is an amenable number.

56729925513 is a deficient number, since it is larger than the sum of its proper divisors (25213300241).

56729925513 is a wasteful number, since it uses less digits than its factorization.

56729925513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303325063 (or 6303325060 counting only the distinct ones).

The product of its digits is 5103000, while the sum is 54.

The spelling of 56729925513 in words is "fifty-six billion, seven hundred twenty-nine million, nine hundred twenty-five thousand, five hundred thirteen".