50565347513 has 2 divisors, whose sum is σ = 50565347514. Its totient is φ = 50565347512.

The previous prime is 50565347507. The next prime is 50565347563. The reversal of 50565347513 is 31574356505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49371506809 + 1193840704 = 222197^2 + 34552^2 .

It is a cyclic number.

It is not a de Polignac number, because 50565347513 - 2¹⁸ = 50565085369 is a prime.

It is a super-2 number, since 2×50565347513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50565347563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25282673756 + 25282673757.

It is an arithmetic number, because the mean of its divisors is an integer number (25282673757).

Almost surely, 2^50565347513 is an apocalyptic number.

It is an amenable number.

50565347513 is a deficient number, since it is larger than the sum of its proper divisors (1).

50565347513 is an equidigital number, since it uses as much as digits as its factorization.

50565347513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945000, while the sum is 44.

The spelling of 50565347513 in words is "fifty billion, five hundred sixty-five million, three hundred forty-seven thousand, five hundred thirteen".