50455048921 has 2 divisors, whose sum is σ = 50455048922. Its totient is φ = 50455048920.

The previous prime is 50455048873. The next prime is 50455048949. The reversal of 50455048921 is 12984055405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40120090000 + 10334958921 = 200300^2 + 101661^2 .

It is a cyclic number.

It is not a de Polignac number, because 50455048921 - 2⁷ = 50455048793 is a prime.

It is not a weakly prime, because it can be changed into another prime (50455048961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25227524460 + 25227524461.

It is an arithmetic number, because the mean of its divisors is an integer number (25227524461).

Almost surely, 2^50455048921 is an apocalyptic number.

It is an amenable number.

50455048921 is a deficient number, since it is larger than the sum of its proper divisors (1).

50455048921 is an equidigital number, since it uses as much as digits as its factorization.

50455048921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 50455048921 in words is "fifty billion, four hundred fifty-five million, forty-eight thousand, nine hundred twenty-one".