255343259813 has 4 divisors (see below), whose sum is σ = 255344270508. Its totient is φ = 255342249120.

The previous prime is 255343259807. The next prime is 255343259833. The reversal of 255343259813 is 318952343552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 160113620164 + 95229639649 = 400142^2 + 308593^2 .

It is a cyclic number.

It is not a de Polignac number, because 255343259813 - 2⁸ = 255343259557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255343259833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244145 + ... + 755177.

It is an arithmetic number, because the mean of its divisors is an integer number (63836067627).

Almost surely, 2^255343259813 is an apocalyptic number.

It is an amenable number.

255343259813 is a deficient number, since it is larger than the sum of its proper divisors (1010695).

255343259813 is an equidigital number, since it uses as much as digits as its factorization.

255343259813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010694.

The product of its digits is 3888000, while the sum is 50.

The spelling of 255343259813 in words is "two hundred fifty-five billion, three hundred forty-three million, two hundred fifty-nine thousand, eight hundred thirteen".