255668279 has 2 divisors, whose sum is σ = 255668280. Its totient is φ = 255668278.

The previous prime is 255668267. The next prime is 255668291. The reversal of 255668279 is 972866552.

It is a balanced prime because it is at equal distance from previous prime (255668267) and next prime (255668291).

It is a cyclic number.

It is not a de Polignac number, because 255668279 - 2²⁴ = 238891063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255668249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127834139 + 127834140.

It is an arithmetic number, because the mean of its divisors is an integer number (127834140).

Almost surely, 2^255668279 is an apocalyptic number.

255668279 is a deficient number, since it is larger than the sum of its proper divisors (1).

255668279 is an equidigital number, since it uses as much as digits as its factorization.

255668279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 50.

The square root of 255668279 is about 15989.6303584542. The cubic root of 255668279 is about 634.6860448130.

The spelling of 255668279 in words is "two hundred fifty-five million, six hundred sixty-eight thousand, two hundred seventy-nine".