55117160 has 96 divisors (see below), whose sum is σ = 146943720. Its totient is φ = 18547200.

The previous prime is 55117159. The next prime is 55117201. The reversal of 55117160 is 6171155.

It can be written as a sum of positive squares in 4 ways, for example, as 23600164 + 31516996 = 4858^2 + 5614^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119330 + ... + 119790.

Almost surely, 2^55117160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55117160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73471860).

55117160 is an abundant number, since it is smaller than the sum of its proper divisors (91826560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55117160 is a wasteful number, since it uses less digits than its factorization.

55117160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 55117160 is about 7424.0932106218. The cubic root of 55117160 is about 380.5650872361.

The spelling of 55117160 in words is "fifty-five million, one hundred seventeen thousand, one hundred sixty".