255244869 has 24 divisors (see below), whose sum is σ = 419694912. Its totient is φ = 147966720.

The previous prime is 255244859. The next prime is 255244883. The reversal of 255244869 is 968442552.

255244869 is a `hidden beast` number, since 25 + 524 + 48 + 69 = 666.

It is not a de Polignac number, because 255244869 - 2¹⁵ = 255212101 is a prime.

It is a super-2 number, since 2×255244869² = 130299886301654322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255244859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53772 + ... + 58325.

It is an arithmetic number, because the mean of its divisors is an integer number (17487288).

Almost surely, 2^255244869 is an apocalyptic number.

It is an amenable number.

255244869 is a deficient number, since it is larger than the sum of its proper divisors (164450043).

255244869 is a wasteful number, since it uses less digits than its factorization.

255244869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112137 (or 112134 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 255244869 is about 15976.3847287176. The cubic root of 255244869 is about 634.3354852202.

The spelling of 255244869 in words is "two hundred fifty-five million, two hundred forty-four thousand, eight hundred sixty-nine".