255156163 has 2 divisors, whose sum is σ = 255156164. Its totient is φ = 255156162.

The previous prime is 255156157. The next prime is 255156211. The reversal of 255156163 is 361651552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255156163 is a prime.

It is not a weakly prime, because it can be changed into another prime (255156113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127578081 + 127578082.

It is an arithmetic number, because the mean of its divisors is an integer number (127578082).

Almost surely, 2^255156163 is an apocalyptic number.

255156163 is a deficient number, since it is larger than the sum of its proper divisors (1).

255156163 is an equidigital number, since it uses as much as digits as its factorization.

255156163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 34.

The square root of 255156163 is about 15973.6083274882. The cubic root of 255156163 is about 634.2619925469.

The spelling of 255156163 in words is "two hundred fifty-five million, one hundred fifty-six thousand, one hundred sixty-three".