255031313 has 2 divisors, whose sum is σ = 255031314. Its totient is φ = 255031312.

The previous prime is 255031289. The next prime is 255031373. The reversal of 255031313 is 313130552.

255031313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254977024 + 54289 = 15968^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 255031313 - 2²² = 250837009 is a prime.

It is a super-2 number, since 2×255031313² = 130081941221007938, which contains 22 as substring.

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 (255031373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127515656 + 127515657.

It is an arithmetic number, because the mean of its divisors is an integer number (127515657).

Almost surely, 2^255031313 is an apocalyptic number.

It is an amenable number.

255031313 is a deficient number, since it is larger than the sum of its proper divisors (1).

255031313 is an equidigital number, since it uses as much as digits as its factorization.

255031313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 255031313 is about 15969.6998406357. The cubic root of 255031313 is about 634.1585258071.

Adding to 255031313 its reverse (313130552), we get a palindrome (568161865).

The spelling of 255031313 in words is "two hundred fifty-five million, thirty-one thousand, three hundred thirteen".