255663211 has 4 divisors (see below), whose sum is σ = 256760712. Its totient is φ = 254565712.

The previous prime is 255663203. The next prime is 255663227. The reversal of 255663211 is 112366552.

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 255663211 - 2³ = 255663203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255663271) 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 3 ways as a sum of consecutive naturals, for example, 548401 + ... + 548866.

It is an arithmetic number, because the mean of its divisors is an integer number (64190178).

Almost surely, 2^255663211 is an apocalyptic number.

255663211 is a deficient number, since it is larger than the sum of its proper divisors (1097501).

255663211 is a wasteful number, since it uses less digits than its factorization.

255663211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097500.

The product of its digits is 10800, while the sum is 31.

The square root of 255663211 is about 15989.4718799590. The cubic root of 255663211 is about 634.6818510844.

The spelling of 255663211 in words is "two hundred fifty-five million, six hundred sixty-three thousand, two hundred eleven".