255431667 has 8 divisors (see below), whose sum is σ = 340762320. Its totient is φ = 170194400.

The previous prime is 255431651. The next prime is 255431689. The reversal of 255431667 is 766134552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255431667 - 2⁴ = 255431651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255433667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16692 + ... + 28097.

It is an arithmetic number, because the mean of its divisors is an integer number (42595290).

Almost surely, 2^255431667 is an apocalyptic number.

255431667 is a deficient number, since it is larger than the sum of its proper divisors (85330653).

255431667 is a wasteful number, since it uses less digits than its factorization.

255431667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46693.

The product of its digits is 151200, while the sum is 39.

The square root of 255431667 is about 15982.2297255421. The cubic root of 255431667 is about 634.4901911781.

The spelling of 255431667 in words is "two hundred fifty-five million, four hundred thirty-one thousand, six hundred sixty-seven".