505967171 has 2 divisors, whose sum is σ = 505967172. Its totient is φ = 505967170.

The previous prime is 505967149. The next prime is 505967227. The reversal of 505967171 is 171769505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505967171 - 2¹⁸ = 505705027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (505967071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252983585 + 252983586.

It is an arithmetic number, because the mean of its divisors is an integer number (252983586).

Almost surely, 2^505967171 is an apocalyptic number.

505967171 is a deficient number, since it is larger than the sum of its proper divisors (1).

505967171 is an equidigital number, since it uses as much as digits as its factorization.

505967171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 41.

The square root of 505967171 is about 22493.7140330360. The cubic root of 505967171 is about 796.8454791596.

The spelling of 505967171 in words is "five hundred five million, nine hundred sixty-seven thousand, one hundred seventy-one".