55511360 has 28 divisors (see below), whose sum is σ = 132187188. Its totient is φ = 22204416.

The previous prime is 55511353. The next prime is 55511377. The reversal of 55511360 is 6311555.

It can be written as a sum of positive squares in 2 ways, for example, as 5837056 + 49674304 = 2416^2 + 7048^2 .

It is a super-2 number, since 2×55511360² = 6163022178099200, 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 3 ways as a sum of consecutive naturals, for example, 86417 + ... + 87056.

It is an arithmetic number, because the mean of its divisors is an integer number (4720971).

Almost surely, 2^55511360 is an apocalyptic number.

It is an amenable number.

55511360 is an abundant number, since it is smaller than the sum of its proper divisors (76675828).

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

55511360 is a wasteful number, since it uses less digits than its factorization.

55511360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173490 (or 173480 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 55511360 is about 7450.5946071438. The cubic root of 55511360 is about 381.4702047779.

The spelling of 55511360 in words is "fifty-five million, five hundred eleven thousand, three hundred sixty".