255313291 has 2 divisors, whose sum is σ = 255313292. Its totient is φ = 255313290.

The previous prime is 255313277. The next prime is 255313381. The reversal of 255313291 is 192313552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255313291 - 2²³ = 246924683 is a prime.

It is a super-2 number, since 2×255313291² = 130369753122501362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255313211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127656645 + 127656646.

It is an arithmetic number, because the mean of its divisors is an integer number (127656646).

Almost surely, 2^255313291 is an apocalyptic number.

255313291 is a deficient number, since it is larger than the sum of its proper divisors (1).

255313291 is an equidigital number, since it uses as much as digits as its factorization.

255313291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 31.

The square root of 255313291 is about 15978.5259332643. The cubic root of 255313291 is about 634.3921610248.

The spelling of 255313291 in words is "two hundred fifty-five million, three hundred thirteen thousand, two hundred ninety-one".