255544231 has 4 divisors (see below), whose sum is σ = 259358392. Its totient is φ = 251730072.

The previous prime is 255544229. The next prime is 255544249. The reversal of 255544231 is 132445552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255544231 - 2¹ = 255544229 is a prime.

It is a super-2 number, since 2×255544231² = 130605707994762722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255544193 and 255544202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255544271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906980 + ... + 1907113.

It is an arithmetic number, because the mean of its divisors is an integer number (64839598).

Almost surely, 2^255544231 is an apocalyptic number.

255544231 is a deficient number, since it is larger than the sum of its proper divisors (3814161).

255544231 is an equidigital number, since it uses as much as digits as its factorization.

255544231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814160.

The product of its digits is 24000, while the sum is 31.

The square root of 255544231 is about 15985.7508738251. The cubic root of 255544231 is about 634.5833801786.

Adding to 255544231 its reverse (132445552), we get a palindrome (387989783).

The spelling of 255544231 in words is "two hundred fifty-five million, five hundred forty-four thousand, two hundred thirty-one".