55495560 has 128 divisors (see below), whose sum is σ = 177292800. Its totient is φ = 13870080.

The previous prime is 55495541. The next prime is 55495613. The reversal of 55495560 is 6559455.

55495560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128545 + ... + 128975.

It is an arithmetic number, because the mean of its divisors is an integer number (1385100).

Almost surely, 2^55495560 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 55495560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88646400).

55495560 is an abundant number, since it is smaller than the sum of its proper divisors (121797240).

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

55495560 is a wasteful number, since it uses less digits than its factorization.

55495560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 55495560 is about 7449.5342136271. The cubic root of 55495560 is about 381.4340091766.

The spelling of 55495560 in words is "fifty-five million, four hundred ninety-five thousand, five hundred sixty".