255828613 has 8 divisors (see below), whose sum is σ = 257300120. Its totient is φ = 254361600.

The previous prime is 255828611. The next prime is 255828637. The reversal of 255828613 is 316828552.

It can be written as a sum of positive squares in 4 ways, for example, as 11437924 + 244390689 = 3382^2 + 15633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255828613 - 2¹ = 255828611 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 (255828611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212413 + ... + 213613.

It is an arithmetic number, because the mean of its divisors is an integer number (32162515).

Almost surely, 2^255828613 is an apocalyptic number.

It is an amenable number.

255828613 is a deficient number, since it is larger than the sum of its proper divisors (1471507).

255828613 is a wasteful number, since it uses less digits than its factorization.

255828613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247.

The product of its digits is 115200, while the sum is 40.

The square root of 255828613 is about 15994.6432595416. The cubic root of 255828613 is about 634.8186912875.

The spelling of 255828613 in words is "two hundred fifty-five million, eight hundred twenty-eight thousand, six hundred thirteen".