255738013 has 2 divisors, whose sum is σ = 255738014. Its totient is φ = 255738012.

The previous prime is 255738001. The next prime is 255738017. The reversal of 255738013 is 310837552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219099204 + 36638809 = 14802^2 + 6053^2 .

It is a cyclic number.

It is not a de Polignac number, because 255738013 - 2⁹ = 255737501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255738013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255738017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127869006 + 127869007.

It is an arithmetic number, because the mean of its divisors is an integer number (127869007).

Almost surely, 2^255738013 is an apocalyptic number.

It is an amenable number.

255738013 is a deficient number, since it is larger than the sum of its proper divisors (1).

255738013 is an equidigital number, since it uses as much as digits as its factorization.

255738013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 255738013 is about 15991.8108105367. The cubic root of 255738013 is about 634.7437435017.

The spelling of 255738013 in words is "two hundred fifty-five million, seven hundred thirty-eight thousand, thirteen".