255651163 has 16 divisors (see below), whose sum is σ = 264960640. Its totient is φ = 246571776.

The previous prime is 255651161. The next prime is 255651169. The reversal of 255651163 is 361156552.

It is a cyclic number.

It is not a de Polignac number, because 255651163 - 2¹ = 255651161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255651161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903220 + ... + 903502.

It is an arithmetic number, because the mean of its divisors is an integer number (16560040).

Almost surely, 2^255651163 is an apocalyptic number.

255651163 is a deficient number, since it is larger than the sum of its proper divisors (9309477).

255651163 is a wasteful number, since it uses less digits than its factorization.

255651163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its digits is 27000, while the sum is 34.

The square root of 255651163 is about 15989.0951276174. The cubic root of 255651163 is about 634.6718812403.

The spelling of 255651163 in words is "two hundred fifty-five million, six hundred fifty-one thousand, one hundred sixty-three".