55550549999985 has 64 divisors (see below), whose sum is σ = 89438677106688. Its totient is φ = 29441650777344.

The previous prime is 55550549999953. The next prime is 55550550000031. The reversal of 55550549999985 is 58999994505555.

It is a happy number.

55550549999985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55550549999985 - 2⁵ = 55550549999953 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6595098484 + ... + 6595106906.

It is an arithmetic number, because the mean of its divisors is an integer number (1397479329792).

Almost surely, 2^{55550549999985} is an apocalyptic number.

It is an amenable number.

55550549999985 is a deficient number, since it is larger than the sum of its proper divisors (33888127106703).

55550549999985 is a wasteful number, since it uses less digits than its factorization.

55550549999985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12734.

The product of its (nonzero) digits is 29524500000, while the sum is 87.

The spelling of 55550549999985 in words is "fifty-five trillion, five hundred fifty billion, five hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred eighty-five".