55170115 has 64 divisors (see below), whose sum is σ = 90703872. Its totient is φ = 31104000.

The previous prime is 55170113. The next prime is 55170179. The reversal of 55170115 is 51107155.

It is not a de Polignac number, because 55170115 - 2¹ = 55170113 is a prime.

It is a super-2 number, since 2×55170115² = 6087483178226450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55170115.

It is not an unprimeable number, because it can be changed into a prime (55170113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 365290 + ... + 365440.

It is an arithmetic number, because the mean of its divisors is an integer number (1417248).

Almost surely, 2^55170115 is an apocalyptic number.

55170115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55170115 is a deficient number, since it is larger than the sum of its proper divisors (35533757).

55170115 is a wasteful number, since it uses less digits than its factorization.

55170115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 875, while the sum is 25.

The square root of 55170115 is about 7427.6587832237. The cubic root of 55170115 is about 380.6869269290.

The spelling of 55170115 in words is "fifty-five million, one hundred seventy thousand, one hundred fifteen".