56680511533 has 8 divisors (see below), whose sum is σ = 58070390400. Its totient is φ = 55293893088.

The previous prime is 56680511527. The next prime is 56680511611. The reversal of 56680511533 is 33511508665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56680511533 - 2⁵ = 56680511501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

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 56680511533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56681511533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779893 + ... + 849466.

It is an arithmetic number, because the mean of its divisors is an integer number (7258798800).

Almost surely, 2^56680511533 is an apocalyptic number.

It is an amenable number.

56680511533 is a deficient number, since it is larger than the sum of its proper divisors (1389878867).

56680511533 is a wasteful number, since it uses less digits than its factorization.

56680511533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630211.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 56680511533 in words is "fifty-six billion, six hundred eighty million, five hundred eleven thousand, five hundred thirty-three".