255801218 has 8 divisors (see below), whose sum is σ = 403896720. Its totient is φ = 121168980.

The previous prime is 255801191. The next prime is 255801223. The reversal of 255801218 is 812108552.

It is a happy number.

255801218 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 3365768 + ... + 3365843.

It is an arithmetic number, because the mean of its divisors is an integer number (50487090).

Almost surely, 2^255801218 is an apocalyptic number.

255801218 is a deficient number, since it is larger than the sum of its proper divisors (148095502).

255801218 is a wasteful number, since it uses less digits than its factorization.

255801218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731632.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 255801218 is about 15993.7868561514. The cubic root of 255801218 is about 634.7960309621.

The spelling of 255801218 in words is "two hundred fifty-five million, eight hundred one thousand, two hundred eighteen".