50020551055 has 4 divisors (see below), whose sum is σ = 60024661272. Its totient is φ = 40016440840.

The previous prime is 50020551019. The next prime is 50020551067. The reversal of 50020551055 is 55015502005.

It is a happy number.

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

It is not a de Polignac number, because 50020551055 - 2⁹ = 50020550543 is a prime.

It is a super-2 number, since 2×50020551055² (a number of 22 digits) contains 22 as substring.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5002055101 + ... + 5002055110.

It is an arithmetic number, because the mean of its divisors is an integer number (15006165318).

Almost surely, 2^50020551055 is an apocalyptic number.

50020551055 is a deficient number, since it is larger than the sum of its proper divisors (10004110217).

50020551055 is a wasteful number, since it uses less digits than its factorization.

50020551055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004110216.

The product of its (nonzero) digits is 6250, while the sum is 28.

The spelling of 50020551055 in words is "fifty billion, twenty million, five hundred fifty-one thousand, fifty-five".