255338251 has 4 divisors (see below), whose sum is σ = 291815152. Its totient is φ = 218861352.

The previous prime is 255338233. The next prime is 255338261. The reversal of 255338251 is 152833552.

255338251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 255338251 - 2⁷ = 255338123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255338261) 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, 18238440 + ... + 18238453.

It is an arithmetic number, because the mean of its divisors is an integer number (72953788).

Almost surely, 2^255338251 is an apocalyptic number.

255338251 is a deficient number, since it is larger than the sum of its proper divisors (36476901).

255338251 is an equidigital number, since it uses as much as digits as its factorization.

255338251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36476900.

The product of its digits is 36000, while the sum is 34.

The square root of 255338251 is about 15979.3069624436. The cubic root of 255338251 is about 634.4128335513.

It can be divided in two parts, 2553 and 38251, that added together give a palindrome (40804).

The spelling of 255338251 in words is "two hundred fifty-five million, three hundred thirty-eight thousand, two hundred fifty-one".