165055259 has 2 divisors, whose sum is σ = 165055260. Its totient is φ = 165055258.

The previous prime is 165055213. The next prime is 165055277. The reversal of 165055259 is 952550561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165055259 - 2⁸ = 165055003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (165055279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82527629 + 82527630.

It is an arithmetic number, because the mean of its divisors is an integer number (82527630).

Almost surely, 2^165055259 is an apocalyptic number.

165055259 is a deficient number, since it is larger than the sum of its proper divisors (1).

165055259 is an equidigital number, since it uses as much as digits as its factorization.

165055259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67500, while the sum is 38.

The square root of 165055259 is about 12847.3833522628. The cubic root of 165055259 is about 548.5418776871.

The spelling of 165055259 in words is "one hundred sixty-five million, fifty-five thousand, two hundred fifty-nine".