255870223 has 4 divisors (see below), whose sum is σ = 292423120. Its totient is φ = 219317328.

The previous prime is 255870221. The next prime is 255870233. The reversal of 255870223 is 322078552.

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 255870223 - 2¹ = 255870221 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 (255870221) 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, 18276438 + ... + 18276451.

It is an arithmetic number, because the mean of its divisors is an integer number (73105780).

Almost surely, 2^255870223 is an apocalyptic number.

255870223 is a deficient number, since it is larger than the sum of its proper divisors (36552897).

255870223 is an equidigital number, since it uses as much as digits as its factorization.

255870223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36552896.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 255870223 is about 15995.9439546405. The cubic root of 255870223 is about 634.8531067417.

The spelling of 255870223 in words is "two hundred fifty-five million, eight hundred seventy thousand, two hundred twenty-three".