55204579990000 has 800 divisors, whose sum is σ = 168033668014080. Its totient is φ = 17125561728000.

The previous prime is 55204579989991. The next prime is 55204579990013. The reversal of 55204579990000 is 9997540255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 34352569197 + ... + 34352570803.

Almost surely, 2^{55204579990000} is an apocalyptic number.

55204579990000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55204579990000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84016834007040).

55204579990000 is an abundant number, since it is smaller than the sum of its proper divisors (112829088024080).

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

55204579990000 is a wasteful number, since it uses less digits than its factorization.

55204579990000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807 (or 2786 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 55.

The spelling of 55204579990000 in words is "fifty-five trillion, two hundred four billion, five hundred seventy-nine million, nine hundred ninety thousand".