255863423 has 2 divisors, whose sum is σ = 255863424. Its totient is φ = 255863422.

The previous prime is 255863407. The next prime is 255863437. The reversal of 255863423 is 324368552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255863423 - 2⁴ = 255863407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255863323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127931711 + 127931712.

It is an arithmetic number, because the mean of its divisors is an integer number (127931712).

Almost surely, 2^255863423 is an apocalyptic number.

255863423 is a deficient number, since it is larger than the sum of its proper divisors (1).

255863423 is an equidigital number, since it uses as much as digits as its factorization.

255863423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 38.

The square root of 255863423 is about 15995.7313993453. The cubic root of 255863423 is about 634.8474827457.

The spelling of 255863423 in words is "two hundred fifty-five million, eight hundred sixty-three thousand, four hundred twenty-three".