255898231 has 2 divisors, whose sum is σ = 255898232. Its totient is φ = 255898230.

The previous prime is 255898189. The next prime is 255898303. The reversal of 255898231 is 132898552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255898231 - 2⁷ = 255898103 is a prime.

It is a super-2 number, since 2×255898231² = 130967809257858722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255896231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127949115 + 127949116.

It is an arithmetic number, because the mean of its divisors is an integer number (127949116).

Almost surely, 2^255898231 is an apocalyptic number.

255898231 is a deficient number, since it is larger than the sum of its proper divisors (1).

255898231 is an equidigital number, since it uses as much as digits as its factorization.

255898231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 43.

The square root of 255898231 is about 15996.8194026188. The cubic root of 255898231 is about 634.8762699386.

The spelling of 255898231 in words is "two hundred fifty-five million, eight hundred ninety-eight thousand, two hundred thirty-one".