555505500056 has 64 divisors (see below), whose sum is σ = 1134217274400. Its totient is φ = 253531008000.

The previous prime is 555505500047. The next prime is 555505500061. The reversal of 555505500056 is 650005505555.

555505500056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 555505499986 and 555505500022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8465051 + ... + 8530421.

Almost surely, 2^555505500056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555505500056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567108637200).

555505500056 is an abundant number, since it is smaller than the sum of its proper divisors (578711774344).

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

555505500056 is a wasteful number, since it uses less digits than its factorization.

555505500056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66300 (or 66296 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 41.

The spelling of 555505500056 in words is "five hundred fifty-five billion, five hundred five million, five hundred thousand, fifty-six".