50251375513 has 2 divisors, whose sum is σ = 50251375514. Its totient is φ = 50251375512.

The previous prime is 50251375507. The next prime is 50251375583. The reversal of 50251375513 is 31557315205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30174469264 + 20076906249 = 173708^2 + 141693^2 .

It is a cyclic number.

It is not a de Polignac number, because 50251375513 - 2¹³ = 50251367321 is a prime.

It is not a weakly prime, because it can be changed into another prime (50251375583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25125687756 + 25125687757.

It is an arithmetic number, because the mean of its divisors is an integer number (25125687757).

Almost surely, 2^50251375513 is an apocalyptic number.

It is an amenable number.

50251375513 is a deficient number, since it is larger than the sum of its proper divisors (1).

50251375513 is an equidigital number, since it uses as much as digits as its factorization.

50251375513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78750, while the sum is 37.

The spelling of 50251375513 in words is "fifty billion, two hundred fifty-one million, three hundred seventy-five thousand, five hundred thirteen".