55886180 has 96 divisors (see below), whose sum is σ = 141066240. Its totient is φ = 18195840.

The previous prime is 55886143. The next prime is 55886189. The reversal of 55886180 is 8168855.

It is a super-2 number, since 2×55886180² = 6246530229984800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55886189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342779 + ... + 342941.

It is an arithmetic number, because the mean of its divisors is an integer number (1469440).

Almost surely, 2^55886180 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 55886180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70533120).

55886180 is an abundant number, since it is smaller than the sum of its proper divisors (85180060).

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

55886180 is a wasteful number, since it uses less digits than its factorization.

55886180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 41.

The square root of 55886180 is about 7475.7059867279. The cubic root of 55886180 is about 382.3268585712.

The spelling of 55886180 in words is "fifty-five million, eight hundred eighty-six thousand, one hundred eighty".