550000500056 has 64 divisors (see below), whose sum is σ = 1197854784000. Its totient is φ = 231887158272.

The previous prime is 550000500043. The next prime is 550000500059. The reversal of 550000500056 is 650005000055.

It is a junction number, because it is equal to n+sod(n) for n = 550000499998 and 550000500034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550000500059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603995 + ... + 1210293.

It is an arithmetic number, because the mean of its divisors is an integer number (18716481000).

Almost surely, 2^550000500056 is an apocalyptic number.

550000500056 is a gapful number since it is divisible by the number (56) 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 550000500056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598927392000).

550000500056 is an abundant number, since it is smaller than the sum of its proper divisors (647854283944).

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

550000500056 is a wasteful number, since it uses less digits than its factorization.

550000500056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606576 (or 606572 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The spelling of 550000500056 in words is "five hundred fifty billion, five hundred thousand, fifty-six".