255356291 has 2 divisors, whose sum is σ = 255356292. Its totient is φ = 255356290.

The previous prime is 255356273. The next prime is 255356293. The reversal of 255356291 is 192653552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255356291 - 2¹⁰ = 255355267 is a prime.

It is a Sophie Germain prime.

Together with 255356293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255356293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127678145 + 127678146.

It is an arithmetic number, because the mean of its divisors is an integer number (127678146).

Almost surely, 2^255356291 is an apocalyptic number.

255356291 is a deficient number, since it is larger than the sum of its proper divisors (1).

255356291 is an equidigital number, since it uses as much as digits as its factorization.

255356291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 38.

The square root of 255356291 is about 15979.8714325241. The cubic root of 255356291 is about 634.4277739137.

The spelling of 255356291 in words is "two hundred fifty-five million, three hundred fifty-six thousand, two hundred ninety-one".