50365895161 has 2 divisors, whose sum is σ = 50365895162. Its totient is φ = 50365895160.

The previous prime is 50365895149. The next prime is 50365895179. The reversal of 50365895161 is 16159856305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45975507561 + 4390387600 = 214419^2 + 66260^2 .

It is a cyclic number.

It is not a de Polignac number, because 50365895161 - 2¹¹ = 50365893113 is a prime.

It is not a weakly prime, because it can be changed into another prime (50365895561) 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, 25182947580 + 25182947581.

It is an arithmetic number, because the mean of its divisors is an integer number (25182947581).

Almost surely, 2^50365895161 is an apocalyptic number.

It is an amenable number.

50365895161 is a deficient number, since it is larger than the sum of its proper divisors (1).

50365895161 is an equidigital number, since it uses as much as digits as its factorization.

50365895161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 50365895161 in words is "fifty billion, three hundred sixty-five million, eight hundred ninety-five thousand, one hundred sixty-one".