255236457313 has 4 divisors (see below), whose sum is σ = 256646603668. Its totient is φ = 253826310960.

The previous prime is 255236457299. The next prime is 255236457341. The reversal of 255236457313 is 313754632552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 914941504 + 254321515809 = 30248^2 + 504303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255236457313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255236457613) 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, 705072906 + ... + 705073267.

It is an arithmetic number, because the mean of its divisors is an integer number (64161650917).

Almost surely, 2^255236457313 is an apocalyptic number.

It is an amenable number.

255236457313 is a deficient number, since it is larger than the sum of its proper divisors (1410146355).

255236457313 is a wasteful number, since it uses less digits than its factorization.

255236457313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410146354.

The product of its digits is 2268000, while the sum is 46.

The spelling of 255236457313 in words is "two hundred fifty-five billion, two hundred thirty-six million, four hundred fifty-seven thousand, three hundred thirteen".