255333281 has 32 divisors (see below), whose sum is σ = 318947328. Its totient is φ = 199647360.

The previous prime is 255333259. The next prime is 255333289. The reversal of 255333281 is 182333552.

It is not a de Polignac number, because 255333281 - 2¹⁸ = 255071137 is a prime.

It is a super-2 number, since 2×255333281² = 130390168772449922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255333289) 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 31 ways as a sum of consecutive naturals, for example, 309836 + ... + 310658.

It is an arithmetic number, because the mean of its divisors is an integer number (9967104).

Almost surely, 2^255333281 is an apocalyptic number.

It is an amenable number.

255333281 is a deficient number, since it is larger than the sum of its proper divisors (63614047).

255333281 is a wasteful number, since it uses less digits than its factorization.

255333281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941.

The product of its digits is 21600, while the sum is 32.

The square root of 255333281 is about 15979.1514480588. The cubic root of 255333281 is about 634.4087173744.

The spelling of 255333281 in words is "two hundred fifty-five million, three hundred thirty-three thousand, two hundred eighty-one".