56170165 has 4 divisors (see below), whose sum is σ = 67404204. Its totient is φ = 44936128.

The previous prime is 56170139. The next prime is 56170223. The reversal of 56170165 is 56107165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37429924 + 18740241 = 6118^2 + 4329^2 .

It is a cyclic number.

It is not a de Polignac number, because 56170165 - 2⁵ = 56170133 is a prime.

It is a super-2 number, since 2×56170165² = 6310174872254450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5617012 + ... + 5617021.

It is an arithmetic number, because the mean of its divisors is an integer number (16851051).

Almost surely, 2^56170165 is an apocalyptic number.

It is an amenable number.

56170165 is a deficient number, since it is larger than the sum of its proper divisors (11234039).

56170165 is a wasteful number, since it uses less digits than its factorization.

56170165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11234038.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 56170165 is about 7494.6757768432. The cubic root of 56170165 is about 382.9733612942.

The spelling of 56170165 in words is "fifty-six million, one hundred seventy thousand, one hundred sixty-five".