500550005550 has 48 divisors (see below), whose sum is σ = 1418701732992. Its totient is φ = 114411429600.

The previous prime is 500550005503. The next prime is 500550005581. The reversal of 500550005550 is 55500055005.

It is a super-2 number, since 2×500550005550² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238356096 + ... + 238358195.

It is an arithmetic number, because the mean of its divisors is an integer number (29556286104).

Almost surely, 2^500550005550 is an apocalyptic number.

500550005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

500550005550 is an abundant number, since it is smaller than the sum of its proper divisors (918151727442).

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

500550005550 is a wasteful number, since it uses less digits than its factorization.

500550005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476714313 (or 476714308 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 500550005550 in words is "five hundred billion, five hundred fifty million, five thousand, five hundred fifty".