56686515319 has 8 divisors (see below), whose sum is σ = 65390053248. Its totient is φ = 48134343480.

The previous prime is 56686515287. The next prime is 56686515341. The reversal of 56686515319 is 91351568665.

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 56686515319 - 2⁵ = 56686515287 is a prime.

It is a super-2 number, since 2×56686515319² (a number of 22 digits) contains 22 as substring.

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 56686515319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56686515719) 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, 37840717 + ... + 37842214.

It is an arithmetic number, because the mean of its divisors is an integer number (8173756656).

Almost surely, 2^56686515319 is an apocalyptic number.

56686515319 is a deficient number, since it is larger than the sum of its proper divisors (8703537929).

56686515319 is a wasteful number, since it uses less digits than its factorization.

56686515319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75683045.

The product of its digits is 5832000, while the sum is 55.

The spelling of 56686515319 in words is "fifty-six billion, six hundred eighty-six million, five hundred fifteen thousand, three hundred nineteen".