50550005021 has 2 divisors, whose sum is σ = 50550005022. Its totient is φ = 50550005020.

The previous prime is 50550004993. The next prime is 50550005089. The reversal of 50550005021 is 12050005505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42606739396 + 7943265625 = 206414^2 + 89125^2 .

It is a cyclic number.

It is not a de Polignac number, because 50550005021 - 2³⁴ = 33370135837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50550005921) by changing a digit.

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 as a sum of consecutive naturals, namely, 25275002510 + 25275002511.

It is an arithmetic number, because the mean of its divisors is an integer number (25275002511).

Almost surely, 2^50550005021 is an apocalyptic number.

It is an amenable number.

50550005021 is a deficient number, since it is larger than the sum of its proper divisors (1).

50550005021 is an equidigital number, since it uses as much as digits as its factorization.

50550005021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1250, while the sum is 23.

The spelling of 50550005021 in words is "fifty billion, five hundred fifty million, five thousand, twenty-one".