255795317 has 2 divisors, whose sum is σ = 255795318. Its totient is φ = 255795316.

The previous prime is 255795301. The next prime is 255795329. The reversal of 255795317 is 713597552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211586116 + 44209201 = 14546^2 + 6649^2 .

It is a cyclic number.

It is not a de Polignac number, because 255795317 - 2⁴ = 255795301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255795367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127897658 + 127897659.

It is an arithmetic number, because the mean of its divisors is an integer number (127897659).

Almost surely, 2^255795317 is an apocalyptic number.

It is an amenable number.

255795317 is a deficient number, since it is larger than the sum of its proper divisors (1).

255795317 is an equidigital number, since it uses as much as digits as its factorization.

255795317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 330750, while the sum is 44.

The square root of 255795317 is about 15993.6023772007. The cubic root of 255795317 is about 634.7911496194.

The spelling of 255795317 in words is "two hundred fifty-five million, seven hundred ninety-five thousand, three hundred seventeen".