55555610120 has 64 divisors (see below), whose sum is σ = 131637744000. Its totient is φ = 21043266048.

The previous prime is 55555610113. The next prime is 55555610147. The reversal of 55555610120 is 2101655555.

It is a happy 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, 1826396 + ... + 1856564.

It is an arithmetic number, because the mean of its divisors is an integer number (2056839750).

Almost surely, 2^55555610120 is an apocalyptic number.

It is an amenable number.

55555610120 is an abundant number, since it is smaller than the sum of its proper divisors (76082133880).

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

55555610120 is a wasteful number, since it uses less digits than its factorization.

55555610120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32622 (or 32618 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 35.

The spelling of 55555610120 in words is "fifty-five billion, five hundred fifty-five million, six hundred ten thousand, one hundred twenty".