55559251860 has 96 divisors (see below), whose sum is σ = 178396791552. Its totient is φ = 12655887360.

The previous prime is 55559251843. The next prime is 55559251897. The reversal of 55559251860 is 6815295555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102681 + ... + 348800.

It is an arithmetic number, because the mean of its divisors is an integer number (1858299912).

Almost surely, 2^55559251860 is an apocalyptic number.

It is an amenable number.

55559251860 is an abundant number, since it is smaller than the sum of its proper divisors (122837539692).

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

55559251860 is a wasteful number, since it uses less digits than its factorization.

55559251860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451793 (or 451791 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 51.

The spelling of 55559251860 in words is "fifty-five billion, five hundred fifty-nine million, two hundred fifty-one thousand, eight hundred sixty".