255340313 has 2 divisors, whose sum is σ = 255340314. Its totient is φ = 255340312.

The previous prime is 255340301. The next prime is 255340339. The reversal of 255340313 is 313043552.

It is an a-pointer prime, because the next prime (255340339) can be obtained adding 255340313 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160706329 + 94633984 = 12677^2 + 9728^2 .

It is a cyclic number.

It is not a de Polignac number, because 255340313 - 2⁶ = 255340249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (255340343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127670156 + 127670157.

It is an arithmetic number, because the mean of its divisors is an integer number (127670157).

Almost surely, 2^255340313 is an apocalyptic number.

It is an amenable number.

255340313 is a deficient number, since it is larger than the sum of its proper divisors (1).

255340313 is an equidigital number, since it uses as much as digits as its factorization.

255340313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 255340313 is about 15979.3714832593. The cubic root of 255340313 is about 634.4145412935.

Adding to 255340313 its reverse (313043552), we get a palindrome (568383865).

The spelling of 255340313 in words is "two hundred fifty-five million, three hundred forty thousand, three hundred thirteen".