55173165 has 8 divisors (see below), whose sum is σ = 88277088. Its totient is φ = 29425680.

The previous prime is 55173133. The next prime is 55173187. The reversal of 55173165 is 56137155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55173165 - 2⁵ = 55173133 is a prime.

It is a super-2 number, since 2×55173165² = 6088156272234450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1839091 + ... + 1839120.

It is an arithmetic number, because the mean of its divisors is an integer number (11034636).

Almost surely, 2^55173165 is an apocalyptic number.

It is an amenable number.

55173165 is a deficient number, since it is larger than the sum of its proper divisors (33103923).

55173165 is a wasteful number, since it uses less digits than its factorization.

55173165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678219.

The product of its digits is 15750, while the sum is 33.

The square root of 55173165 is about 7427.8640940717. The cubic root of 55173165 is about 380.6939420418.

The spelling of 55173165 in words is "fifty-five million, one hundred seventy-three thousand, one hundred sixty-five".