255215167 has 4 divisors (see below), whose sum is σ = 264015720. Its totient is φ = 246414616.

The previous prime is 255215143. The next prime is 255215171. The reversal of 255215167 is 761512552.

255215167 is nontrivially palindromic in base 16.

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 255215167 - 2¹⁹ = 254690879 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 (255215767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4400233 + ... + 4400290.

It is an arithmetic number, because the mean of its divisors is an integer number (66003930).

Almost surely, 2^255215167 is an apocalyptic number.

255215167 is a deficient number, since it is larger than the sum of its proper divisors (8800553).

255215167 is an equidigital number, since it uses as much as digits as its factorization.

255215167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8800552.

The product of its digits is 21000, while the sum is 34.

The square root of 255215167 is about 15975.4551421861. The cubic root of 255215167 is about 634.3108790926.

The spelling of 255215167 in words is "two hundred fifty-five million, two hundred fifteen thousand, one hundred sixty-seven".