255866207 has 2 divisors, whose sum is σ = 255866208. Its totient is φ = 255866206.

The previous prime is 255866173. The next prime is 255866263. The reversal of 255866207 is 702668552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255866207 - 2¹⁴ = 255849823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255866267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127933103 + 127933104.

It is an arithmetic number, because the mean of its divisors is an integer number (127933104).

Almost surely, 2^255866207 is an apocalyptic number.

255866207 is a deficient number, since it is larger than the sum of its proper divisors (1).

255866207 is an equidigital number, since it uses as much as digits as its factorization.

255866207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 255866207 is about 15995.8184223253. The cubic root of 255866207 is about 634.8497852879.

The spelling of 255866207 in words is "two hundred fifty-five million, eight hundred sixty-six thousand, two hundred seven".