56165519 has 8 divisors (see below), whose sum is σ = 58381680. Its totient is φ = 53986176.

The previous prime is 56165513. The next prime is 56165533. The reversal of 56165519 is 91556165.

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 56165519 - 2⁴ = 56165503 is a prime.

It is a super-2 number, since 2×56165519² = 6309131049078722, 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 (56165513) 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, 6074 + ... + 12215.

It is an arithmetic number, because the mean of its divisors is an integer number (7297710).

Almost surely, 2^56165519 is an apocalyptic number.

56165519 is a deficient number, since it is larger than the sum of its proper divisors (2216161).

56165519 is a wasteful number, since it uses less digits than its factorization.

56165519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18409.

The product of its digits is 40500, while the sum is 38.

The square root of 56165519 is about 7494.3658170655. The cubic root of 56165519 is about 382.9628020510.

The spelling of 56165519 in words is "fifty-six million, one hundred sixty-five thousand, five hundred nineteen".