50375570521 has 2 divisors, whose sum is σ = 50375570522. Its totient is φ = 50375570520.

The previous prime is 50375570519. The next prime is 50375570543. The reversal of 50375570521 is 12507557305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33584594121 + 16790976400 = 183261^2 + 129580^2 .

It is a cyclic number.

It is not a de Polignac number, because 50375570521 - 2¹ = 50375570519 is a prime.

It is a super-2 number, since 2×50375570521² (a number of 22 digits) contains 22 as substring.

Together with 50375570519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50375570591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25187785260 + 25187785261.

It is an arithmetic number, because the mean of its divisors is an integer number (25187785261).

Almost surely, 2^50375570521 is an apocalyptic number.

It is an amenable number.

50375570521 is a deficient number, since it is larger than the sum of its proper divisors (1).

50375570521 is an equidigital number, since it uses as much as digits as its factorization.

50375570521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183750, while the sum is 40.

The spelling of 50375570521 in words is "fifty billion, three hundred seventy-five million, five hundred seventy thousand, five hundred twenty-one".