255843751 has 2 divisors, whose sum is σ = 255843752. Its totient is φ = 255843750.

The previous prime is 255843733. The next prime is 255843793. The reversal of 255843751 is 157348552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255843751 - 2⁵ = 255843719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255843551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127921875 + 127921876.

It is an arithmetic number, because the mean of its divisors is an integer number (127921876).

Almost surely, 2^255843751 is an apocalyptic number.

255843751 is a deficient number, since it is larger than the sum of its proper divisors (1).

255843751 is an equidigital number, since it uses as much as digits as its factorization.

255843751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 40.

The square root of 255843751 is about 15995.1164734740. The cubic root of 255843751 is about 634.8312122948.

The spelling of 255843751 in words is "two hundred fifty-five million, eight hundred forty-three thousand, seven hundred fifty-one".