55500505050555 has 48 divisors (see below), whose sum is σ = 98812704186144. Its totient is φ = 28796820917760.

The previous prime is 55500505050521. The next prime is 55500505050577. The reversal of 55500505050555 is 55505050500555.

It is not a de Polignac number, because 55500505050555 - 2⁶ = 55500505050491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55500505050555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11977135 + ... + 15951575.

It is an arithmetic number, because the mean of its divisors is an integer number (2058598003878).

Almost surely, 2^{55500505050555} is an apocalyptic number.

55500505050555 is a deficient number, since it is larger than the sum of its proper divisors (43312199135589).

55500505050555 is a wasteful number, since it uses less digits than its factorization.

55500505050555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982876 (or 3982873 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55500505050555 in words is "fifty-five trillion, five hundred billion, five hundred five million, fifty thousand, five hundred fifty-five".