56013797517 has 8 divisors (see below), whose sum is σ = 74851401600. Its totient is φ = 37259362560.

The previous prime is 56013797509. The next prime is 56013797551. The reversal of 56013797517 is 71579731065.

56013797517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56013797517 - 2³ = 56013797509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56013797517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56013797507) 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, 20790709 + ... + 20793402.

It is an arithmetic number, because the mean of its divisors is an integer number (9356425200).

Almost surely, 2^56013797517 is an apocalyptic number.

It is an amenable number.

56013797517 is a deficient number, since it is larger than the sum of its proper divisors (18837604083).

56013797517 is a wasteful number, since it uses less digits than its factorization.

56013797517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41584563.

The product of its (nonzero) digits is 1389150, while the sum is 51.

The spelling of 56013797517 in words is "fifty-six billion, thirteen million, seven hundred ninety-seven thousand, five hundred seventeen".