255827591 has 2 divisors, whose sum is σ = 255827592. Its totient is φ = 255827590.

The previous prime is 255827569. The next prime is 255827603. The reversal of 255827591 is 195728552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255827591 - 2⁶ = 255827527 is a prime.

It is equal to p_13980599 and since 255827591 and 13980599 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255827291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127913795 + 127913796.

It is an arithmetic number, because the mean of its divisors is an integer number (127913796).

Almost surely, 2^255827591 is an apocalyptic number.

255827591 is a deficient number, since it is larger than the sum of its proper divisors (1).

255827591 is an equidigital number, since it uses as much as digits as its factorization.

255827591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 44.

The square root of 255827591 is about 15994.6113113136. The cubic root of 255827591 is about 634.8178459487.

The spelling of 255827591 in words is "two hundred fifty-five million, eight hundred twenty-seven thousand, five hundred ninety-one".