55561160 has 32 divisors (see below), whose sum is σ = 127923840. Its totient is φ = 21706944.

The previous prime is 55561159. The next prime is 55561171. The reversal of 55561160 is 6116555.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14432 + ... + 17871.

It is an arithmetic number, because the mean of its divisors is an integer number (3997620).

Almost surely, 2^55561160 is an apocalyptic number.

It is an amenable number.

55561160 is an abundant number, since it is smaller than the sum of its proper divisors (72362680).

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

55561160 is a wasteful number, since it uses less digits than its factorization.

55561160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32357 (or 32353 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 55561160 is about 7453.9358730807. The cubic root of 55561160 is about 381.5842447278.

The spelling of 55561160 in words is "fifty-five million, five hundred sixty-one thousand, one hundred sixty".