255444243 has 8 divisors (see below), whose sum is σ = 340666368. Its totient is φ = 170259144.

The previous prime is 255444179. The next prime is 255444253. The reversal of 255444243 is 342444552.

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

It is not a de Polignac number, because 255444243 - 2⁶ = 255444179 is a prime.

It is a super-2 number, since 2×255444243² = 130503522563686098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255444253) 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, 20646 + ... + 30612.

It is an arithmetic number, because the mean of its divisors is an integer number (42583296).

Almost surely, 2^255444243 is an apocalyptic number.

255444243 is a deficient number, since it is larger than the sum of its proper divisors (85222125).

255444243 is an equidigital number, since it uses as much as digits as its factorization.

255444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18513.

The product of its digits is 76800, while the sum is 33.

The square root of 255444243 is about 15982.6231576672. The cubic root of 255444243 is about 634.5006039013.

Adding to 255444243 its reverse (342444552), we get a palindrome (597888795).

The spelling of 255444243 in words is "two hundred fifty-five million, four hundred forty-four thousand, two hundred forty-three".