255998229 has 16 divisors (see below), whose sum is σ = 363007680. Its totient is φ = 160012800.

The previous prime is 255998213. The next prime is 255998251. The reversal of 255998229 is 922899552.

It is not a de Polignac number, because 255998229 - 2⁴ = 255998213 is a prime.

It is a super-2 number, since 2×255998229² = 131070186502272882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255998129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17622 + ... + 28679.

It is an arithmetic number, because the mean of its divisors is an integer number (22687980).

Almost surely, 2^255998229 is an apocalyptic number.

It is an amenable number.

255998229 is a deficient number, since it is larger than the sum of its proper divisors (107009451).

255998229 is a wasteful number, since it uses less digits than its factorization.

255998229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46420.

The product of its digits is 1166400, while the sum is 51.

The square root of 255998229 is about 15999.9446561543. The cubic root of 255998229 is about 634.9589565718.

The spelling of 255998229 in words is "two hundred fifty-five million, nine hundred ninety-eight thousand, two hundred twenty-nine".