5550431131990 has 16 divisors (see below), whose sum is σ = 10027642374720. Its totient is φ = 2211979933440.

The previous prime is 5550431131961. The next prime is 5550431132027. The reversal of 5550431131990 is 991311340555.

It is a self number, because there is not a number n which added to its sum of digits gives 5550431131990.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1024062075 + ... + 1024067494.

It is an arithmetic number, because the mean of its divisors is an integer number (626727648420).

Almost surely, 2^{5550431131990} is an apocalyptic number.

5550431131990 is a deficient number, since it is larger than the sum of its proper divisors (4477211242730).

5550431131990 is a wasteful number, since it uses less digits than its factorization.

5550431131990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048129847.

The product of its (nonzero) digits is 364500, while the sum is 46.

The spelling of 5550431131990 in words is "five trillion, five hundred fifty billion, four hundred thirty-one million, one hundred thirty-one thousand, nine hundred ninety".