255887 has 2 divisors, whose sum is σ = 255888. Its totient is φ = 255886.

The previous prime is 255877. The next prime is 255907. The reversal of 255887 is 788552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255887 - 2¹² = 251791 is a prime.

It is a Chen prime.

It is a zygodrome in base 2 and base 3.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255887.

It is not a weakly prime, because it can be changed into another prime (255847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127943 + 127944.

It is an arithmetic number, because the mean of its divisors is an integer number (127944).

2²⁵⁵⁸⁸⁷ is an apocalyptic number.

255887 is a deficient number, since it is larger than the sum of its proper divisors (1).

255887 is an equidigital number, since it uses as much as digits as its factorization.

255887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 35.

The square root of 255887 is about 505.8527453716. The cubic root of 255887 is about 63.4866981872.

The spelling of 255887 in words is "two hundred fifty-five thousand, eight hundred eighty-seven".