255722163 has 4 divisors (see below), whose sum is σ = 340962888. Its totient is φ = 170481440.

The previous prime is 255722149. The next prime is 255722171. The reversal of 255722163 is 361227552.

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

It is a cyclic number.

It is not a de Polignac number, because 255722163 - 2⁴ = 255722147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255722123) 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, 42620358 + ... + 42620363.

It is an arithmetic number, because the mean of its divisors is an integer number (85240722).

Almost surely, 2^255722163 is an apocalyptic number.

255722163 is a deficient number, since it is larger than the sum of its proper divisors (85240725).

255722163 is an equidigital number, since it uses as much as digits as its factorization.

255722163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85240724.

The product of its digits is 25200, while the sum is 33.

The square root of 255722163 is about 15991.3152367152. The cubic root of 255722163 is about 634.7306299562.

The spelling of 255722163 in words is "two hundred fifty-five million, seven hundred twenty-two thousand, one hundred sixty-three".