255768167 has 4 divisors (see below), whose sum is σ = 256678656. Its totient is φ = 254857680.

The previous prime is 255768157. The next prime is 255768169. The reversal of 255768167 is 761867552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255768167 - 2⁴ = 255768151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255768169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454823 + ... + 455384.

It is an arithmetic number, because the mean of its divisors is an integer number (64169664).

Almost surely, 2^255768167 is an apocalyptic number.

255768167 is a deficient number, since it is larger than the sum of its proper divisors (910489).

255768167 is an equidigital number, since it uses as much as digits as its factorization.

255768167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910488.

The product of its digits is 705600, while the sum is 47.

The square root of 255768167 is about 15992.7535777927. The cubic root of 255768167 is about 634.7686900090.

The spelling of 255768167 in words is "two hundred fifty-five million, seven hundred sixty-eight thousand, one hundred sixty-seven".