56515319 has 8 divisors (see below), whose sum is σ = 64698240. Its totient is φ = 48359736.

The previous prime is 56515313. The next prime is 56515337. The reversal of 56515319 is 91351565.

It is a happy number.

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 56515319 - 2²⁰ = 55466743 is a prime.

It is a super-2 number, since 2×56515319² = 6387962563343522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56515313) 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, 2189 + ... + 10854.

It is an arithmetic number, because the mean of its divisors is an integer number (8087280).

Almost surely, 2^56515319 is an apocalyptic number.

56515319 is a deficient number, since it is larger than the sum of its proper divisors (8182921).

56515319 is a wasteful number, since it uses less digits than its factorization.

56515319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13669.

The product of its digits is 20250, while the sum is 35.

The square root of 56515319 is about 7517.6671248466. The cubic root of 56515319 is about 383.7561906289.

The spelling of 56515319 in words is "fifty-six million, five hundred fifteen thousand, three hundred nineteen".