50775323789 has 2 divisors, whose sum is σ = 50775323790. Its totient is φ = 50775323788.

The previous prime is 50775323749. The next prime is 50775323803. The reversal of 50775323789 is 98732357705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30623250025 + 20152073764 = 174995^2 + 141958^2 .

It is a cyclic number.

It is not a de Polignac number, because 50775323789 - 2²⁰ = 50774275213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50775323749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25387661894 + 25387661895.

It is an arithmetic number, because the mean of its divisors is an integer number (25387661895).

Almost surely, 2^50775323789 is an apocalyptic number.

It is an amenable number.

50775323789 is a deficient number, since it is larger than the sum of its proper divisors (1).

50775323789 is an equidigital number, since it uses as much as digits as its factorization.

50775323789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11113200, while the sum is 56.

The spelling of 50775323789 in words is "fifty billion, seven hundred seventy-five million, three hundred twenty-three thousand, seven hundred eighty-nine".