255430013 has 2 divisors, whose sum is σ = 255430014. Its totient is φ = 255430012.

The previous prime is 255430001. The next prime is 255430031. The reversal of 255430013 is 310034552.

Together with next prime (255430031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245925124 + 9504889 = 15682^2 + 3083^2 .

It is a cyclic number.

It is not a de Polignac number, because 255430013 - 2²⁶ = 188321149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255430073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127715006 + 127715007.

It is an arithmetic number, because the mean of its divisors is an integer number (127715007).

Almost surely, 2^255430013 is an apocalyptic number.

It is an amenable number.

255430013 is a deficient number, since it is larger than the sum of its proper divisors (1).

255430013 is an equidigital number, since it uses as much as digits as its factorization.

255430013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 255430013 is about 15982.1779804881. The cubic root of 255430013 is about 634.4888216676.

Adding to 255430013 its reverse (310034552), we get a palindrome (565464565).

The spelling of 255430013 in words is "two hundred fifty-five million, four hundred thirty thousand, thirteen".