50331577251161 has 2 divisors, whose sum is σ = 50331577251162. Its totient is φ = 50331577251160.

The previous prime is 50331577251143. The next prime is 50331577251227. The reversal of 50331577251161 is 16115277513305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48164557724761 + 2167019526400 = 6940069^2 + 1472080^2 .

It is a cyclic number.

It is not a de Polignac number, because 50331577251161 - 2²⁶ = 50331510142297 is a prime.

It is not a weakly prime, because it can be changed into another prime (50331577251661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25165788625580 + 25165788625581.

It is an arithmetic number, because the mean of its divisors is an integer number (25165788625581).

Almost surely, 2^{50331577251161} is an apocalyptic number.

It is an amenable number.

50331577251161 is a deficient number, since it is larger than the sum of its proper divisors (1).

50331577251161 is an equidigital number, since it uses as much as digits as its factorization.

50331577251161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661500, while the sum is 47.

The spelling of 50331577251161 in words is "fifty trillion, three hundred thirty-one billion, five hundred seventy-seven million, two hundred fifty-one thousand, one hundred sixty-one".