50717565839 has 2 divisors, whose sum is σ = 50717565840. Its totient is φ = 50717565838.

The previous prime is 50717565809. The next prime is 50717565863. The reversal of 50717565839 is 93856571705.

50717565839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50717565839 - 2¹² = 50717561743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50717565809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25358782919 + 25358782920.

It is an arithmetic number, because the mean of its divisors is an integer number (25358782920).

Almost surely, 2^50717565839 is an apocalyptic number.

50717565839 is a deficient number, since it is larger than the sum of its proper divisors (1).

50717565839 is an equidigital number, since it uses as much as digits as its factorization.

50717565839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938000, while the sum is 56.

The spelling of 50717565839 in words is "fifty billion, seven hundred seventeen million, five hundred sixty-five thousand, eight hundred thirty-nine".