55806192140 has 24 divisors (see below), whose sum is σ = 122288352480. Its totient is φ = 21351934208.

The previous prime is 55806192139. The next prime is 55806192181. The reversal of 55806192140 is 4129160855.

It is a super-2 number, since 2×55806192140² (a number of 22 digits) contains 22 as substring.

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, 60658445 + ... + 60659364.

It is an arithmetic number, because the mean of its divisors is an integer number (5095348020).

Almost surely, 2^55806192140 is an apocalyptic number.

It is an amenable number.

55806192140 is an abundant number, since it is smaller than the sum of its proper divisors (66482160340).

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

55806192140 is a wasteful number, since it uses less digits than its factorization.

55806192140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121317841 (or 121317839 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 55806192140 in words is "fifty-five billion, eight hundred six million, one hundred ninety-two thousand, one hundred forty".