50940318161 has 2 divisors, whose sum is σ = 50940318162. Its totient is φ = 50940318160.

The previous prime is 50940318137. The next prime is 50940318167. The reversal of 50940318161 is 16181304905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50938233025 + 2085136 = 225695^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 50940318161 - 2¹⁴ = 50940301777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (50940318167) 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, 25470159080 + 25470159081.

It is an arithmetic number, because the mean of its divisors is an integer number (25470159081).

Almost surely, 2^50940318161 is an apocalyptic number.

It is an amenable number.

50940318161 is a deficient number, since it is larger than the sum of its proper divisors (1).

50940318161 is an equidigital number, since it uses as much as digits as its factorization.

50940318161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 50940318161 in words is "fifty billion, nine hundred forty million, three hundred eighteen thousand, one hundred sixty-one".