50718513317 has 2 divisors, whose sum is σ = 50718513318. Its totient is φ = 50718513316.

The previous prime is 50718513301. The next prime is 50718513403. The reversal of 50718513317 is 71331581705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45809268961 + 4909244356 = 214031^2 + 70066^2 .

It is a cyclic number.

It is not a de Polignac number, because 50718513317 - 2⁴ = 50718513301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50718503317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25359256658 + 25359256659.

It is an arithmetic number, because the mean of its divisors is an integer number (25359256659).

Almost surely, 2^50718513317 is an apocalyptic number.

It is an amenable number.

50718513317 is a deficient number, since it is larger than the sum of its proper divisors (1).

50718513317 is an equidigital number, since it uses as much as digits as its factorization.

50718513317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 50718513317 in words is "fifty billion, seven hundred eighteen million, five hundred thirteen thousand, three hundred seventeen".