50312813357 has 2 divisors, whose sum is σ = 50312813358. Its totient is φ = 50312813356.

The previous prime is 50312813321. The next prime is 50312813387. The reversal of 50312813357 is 75331821305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49831186441 + 481626916 = 223229^2 + 21946^2 .

It is a cyclic number.

It is not a de Polignac number, because 50312813357 - 2³⁰ = 49239071533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50312813357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50312813387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25156406678 + 25156406679.

It is an arithmetic number, because the mean of its divisors is an integer number (25156406679).

Almost surely, 2^50312813357 is an apocalyptic number.

It is an amenable number.

50312813357 is a deficient number, since it is larger than the sum of its proper divisors (1).

50312813357 is an equidigital number, since it uses as much as digits as its factorization.

50312813357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 50312813357 in words is "fifty billion, three hundred twelve million, eight hundred thirteen thousand, three hundred fifty-seven".