255847 has 2 divisors, whose sum is σ = 255848. Its totient is φ = 255846.

The previous prime is 255841. The next prime is 255851. The reversal of 255847 is 748552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255847 - 2³ = 255839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255841) 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, 127923 + 127924.

It is an arithmetic number, because the mean of its divisors is an integer number (127924).

2²⁵⁵⁸⁴⁷ is an apocalyptic number.

255847 is a deficient number, since it is larger than the sum of its proper divisors (1).

255847 is an equidigital number, since it uses as much as digits as its factorization.

255847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 31.

The square root of 255847 is about 505.8132066287. The cubic root of 255847 is about 63.4833899557.

The spelling of 255847 in words is "two hundred fifty-five thousand, eight hundred forty-seven".