255403163 has 2 divisors, whose sum is σ = 255403164. Its totient is φ = 255403162.

The previous prime is 255403151. The next prime is 255403199. The reversal of 255403163 is 361304552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255403163 - 2¹⁰ = 255402139 is a prime.

It is not a weakly prime, because it can be changed into another prime (255403663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127701581 + 127701582.

It is an arithmetic number, because the mean of its divisors is an integer number (127701582).

Almost surely, 2^255403163 is an apocalyptic number.

255403163 is a deficient number, since it is larger than the sum of its proper divisors (1).

255403163 is an equidigital number, since it uses as much as digits as its factorization.

255403163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 255403163 is about 15981.3379602585. The cubic root of 255403163 is about 634.4665890652.

The spelling of 255403163 in words is "two hundred fifty-five million, four hundred three thousand, one hundred sixty-three".