55886660 has 24 divisors (see below), whose sum is σ = 118684440. Its totient is φ = 22102784.

The previous prime is 55886653. The next prime is 55886729. The reversal of 55886660 is 6668855.

It can be written as a sum of positive squares in 4 ways, for example, as 770884 + 55115776 = 878^2 + 7424^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13919 + ... + 17478.

It is an arithmetic number, because the mean of its divisors is an integer number (4945185).

Almost surely, 2^55886660 is an apocalyptic number.

It is an amenable number.

55886660 is an abundant number, since it is smaller than the sum of its proper divisors (62797780).

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

55886660 is a wasteful number, since it uses less digits than its factorization.

55886660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31495 (or 31493 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 55886660 is about 7475.7380906503. The cubic root of 55886660 is about 382.3279531552.

The spelling of 55886660 in words is "fifty-five million, eight hundred eighty-six thousand, six hundred sixty".