50005000055 has 4 divisors (see below), whose sum is σ = 60006000072. Its totient is φ = 40004000040.

The previous prime is 50005000049. The next prime is 50005000061. The reversal of 50005000055 is 55000050005.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (50005000049) and next prime (50005000061).

It is not a de Polignac number, because 50005000055 - 2²⁰ = 50003951479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000500001 + ... + 5000500010.

It is an arithmetic number, because the mean of its divisors is an integer number (15001500018).

Almost surely, 2^50005000055 is an apocalyptic number.

50005000055 is a deficient number, since it is larger than the sum of its proper divisors (10001000017).

50005000055 is a wasteful number, since it uses less digits than its factorization.

50005000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001000016.

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

The spelling of 50005000055 in words is "fifty billion, five million, fifty-five", and thus it is an aban number and an uban number.