255643244 has 24 divisors (see below), whose sum is σ = 454053600. Its totient is φ = 125924480.

The previous prime is 255643231. The next prime is 255643273. The reversal of 255643244 is 442346552.

255643244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 109562 + ... + 111870.

It is an arithmetic number, because the mean of its divisors is an integer number (18918900).

Almost surely, 2^255643244 is an apocalyptic number.

It is an amenable number.

255643244 is a deficient number, since it is larger than the sum of its proper divisors (198410356).

255643244 is a wasteful number, since it uses less digits than its factorization.

255643244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2711 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

The square root of 255643244 is about 15988.8474881712. The cubic root of 255643244 is about 634.6653280156.

Adding to 255643244 its reverse (442346552), we get a palindrome (697989796).

The spelling of 255643244 in words is "two hundred fifty-five million, six hundred forty-three thousand, two hundred forty-four".