255605163 has 16 divisors (see below), whose sum is σ = 372331776. Its totient is φ = 154686240.

The previous prime is 255605143. The next prime is 255605171. The reversal of 255605163 is 361506552.

It is not a de Polignac number, because 255605163 - 2⁹ = 255604651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (255605113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18906 + ... + 29472.

It is an arithmetic number, because the mean of its divisors is an integer number (23270736).

Almost surely, 2^255605163 is an apocalyptic number.

255605163 is a deficient number, since it is larger than the sum of its proper divisors (116726613).

255605163 is a wasteful number, since it uses less digits than its factorization.

255605163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11314.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 255605163 is about 15987.6565825014. The cubic root of 255605163 is about 634.6338128852.

The spelling of 255605163 in words is "two hundred fifty-five million, six hundred five thousand, one hundred sixty-three".