55560660 has 48 divisors (see below), whose sum is σ = 156178176. Its totient is φ = 14758272.

The previous prime is 55560629. The next prime is 55560683. The reversal of 55560660 is 6606555.

It is a congruent number.

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, 14949 + ... + 18291.

It is an arithmetic number, because the mean of its divisors is an integer number (3253712).

Almost surely, 2^55560660 is an apocalyptic number.

It is an amenable number.

55560660 is an abundant number, since it is smaller than the sum of its proper divisors (100617516).

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

55560660 is a wasteful number, since it uses less digits than its factorization.

55560660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632 (or 3630 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 55560660 is about 7453.9023336773. The cubic root of 55560660 is about 381.5831000871.

The spelling of 55560660 in words is "fifty-five million, five hundred sixty thousand, six hundred sixty".