55551180 has 48 divisors (see below), whose sum is σ = 158860800. Its totient is φ = 14497728.

The previous prime is 55551179. The next prime is 55551191. The reversal of 55551180 is 8115555.

55551180 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

55551180 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7030 + ... + 12669.

It is an arithmetic number, because the mean of its divisors is an integer number (3309600).

Almost surely, 2^55551180 is an apocalyptic number.

It is an amenable number.

55551180 is an abundant number, since it is smaller than the sum of its proper divisors (103309620).

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

55551180 is a wasteful number, since it uses less digits than its factorization.

55551180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19758 (or 19756 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 30.

The square root of 55551180 is about 7453.2663980298. The cubic root of 55551180 is about 381.5613963999.

The spelling of 55551180 in words is "fifty-five million, five hundred fifty-one thousand, one hundred eighty".