56165219 has 8 divisors (see below), whose sum is σ = 61325760. Its totient is φ = 51013800.

The previous prime is 56165173. The next prime is 56165233. The reversal of 56165219 is 91256165.

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 56165219 - 2¹² = 56161123 is a prime.

It is a super-2 number, since 2×56165219² = 6309063650635922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56165299) 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, 20852 + ... + 23390.

It is an arithmetic number, because the mean of its divisors is an integer number (7665720).

Almost surely, 2^56165219 is an apocalyptic number.

56165219 is a deficient number, since it is larger than the sum of its proper divisors (5160541).

56165219 is a wasteful number, since it uses less digits than its factorization.

56165219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561.

The product of its digits is 16200, while the sum is 35.

The square root of 56165219 is about 7494.3458020030. The cubic root of 56165219 is about 382.9621202030.

The spelling of 56165219 in words is "fifty-six million, one hundred sixty-five thousand, two hundred nineteen".