50501521139 has 2 divisors, whose sum is σ = 50501521140. Its totient is φ = 50501521138.

The previous prime is 50501521123. The next prime is 50501521157. The reversal of 50501521139 is 93112510505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50501521139 - 2⁴ = 50501521123 is a prime.

It is not a weakly prime, because it can be changed into another prime (50501521039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25250760569 + 25250760570.

It is an arithmetic number, because the mean of its divisors is an integer number (25250760570).

Almost surely, 2^50501521139 is an apocalyptic number.

50501521139 is a deficient number, since it is larger than the sum of its proper divisors (1).

50501521139 is an equidigital number, since it uses as much as digits as its factorization.

50501521139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 50501521139 in words is "fifty billion, five hundred one million, five hundred twenty-one thousand, one hundred thirty-nine".