255316613 has 4 divisors (see below), whose sum is σ = 262217100. Its totient is φ = 248416128.

The previous prime is 255316597. The next prime is 255316627. The reversal of 255316613 is 316613552.

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 102373924 + 152942689 = 10118^2 + 12367^2 .

It is a cyclic number.

It is not a de Polignac number, because 255316613 - 2⁴ = 255316597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255316613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255316673) 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, 3450188 + ... + 3450261.

It is an arithmetic number, because the mean of its divisors is an integer number (65554275).

Almost surely, 2^255316613 is an apocalyptic number.

It is an amenable number.

255316613 is a deficient number, since it is larger than the sum of its proper divisors (6900487).

255316613 is an equidigital number, since it uses as much as digits as its factorization.

255316613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900486.

The product of its digits is 16200, while the sum is 32.

The square root of 255316613 is about 15978.6298849432. The cubic root of 255316613 is about 634.3949124700.

The spelling of 255316613 in words is "two hundred fifty-five million, three hundred sixteen thousand, six hundred thirteen".