255957313 has 2 divisors, whose sum is σ = 255957314. Its totient is φ = 255957312.

The previous prime is 255957269. The next prime is 255957323. The reversal of 255957313 is 313759552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253191744 + 2765569 = 15912^2 + 1663^2 .

It is a cyclic number.

It is not a de Polignac number, because 255957313 - 2¹³ = 255949121 is a prime.

It is equal to p_13987336 and since 255957313 and 13987336 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (255957323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127978656 + 127978657.

It is an arithmetic number, because the mean of its divisors is an integer number (127978657).

Almost surely, 2^255957313 is an apocalyptic number.

It is an amenable number.

255957313 is a deficient number, since it is larger than the sum of its proper divisors (1).

255957313 is an equidigital number, since it uses as much as digits as its factorization.

255957313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141750, while the sum is 40.

The square root of 255957313 is about 15998.6659756368. The cubic root of 255957313 is about 634.9251264355.

The spelling of 255957313 in words is "two hundred fifty-five million, nine hundred fifty-seven thousand, three hundred thirteen".