500005000055 has 16 divisors (see below), whose sum is σ = 661032720288. Its totient is φ = 360039600000.

The previous prime is 500005000037. The next prime is 500005000057. The reversal of 500005000055 is 550000500005.

It is a happy number.

It is not a de Polignac number, because 500005000055 - 2²⁰ = 500003951479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500005000057) 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, 44999396 + ... + 45010505.

It is an arithmetic number, because the mean of its divisors is an integer number (41314545018).

Almost surely, 2^500005000055 is an apocalyptic number.

500005000055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

500005000055 is a deficient number, since it is larger than the sum of its proper divisors (161027720233).

500005000055 is a wasteful number, since it uses less digits than its factorization.

500005000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90010018.

The product of its (nonzero) digits is 625, while the sum is 20.

The spelling of 500005000055 in words is "five hundred billion, five million, fifty-five", and thus it is an aban number.