255818242 has 8 divisors (see below), whose sum is σ = 403923600. Its totient is φ = 121177044.

The previous prime is 255818239. The next prime is 255818243. The reversal of 255818242 is 242818552.

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

It is not an unprimeable number, because it can be changed into a prime (255818243) 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, 3365992 + ... + 3366067.

It is an arithmetic number, because the mean of its divisors is an integer number (50490450).

Almost surely, 2^255818242 is an apocalyptic number.

255818242 is a deficient number, since it is larger than the sum of its proper divisors (148105358).

255818242 is a wasteful number, since it uses less digits than its factorization.

255818242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732080.

The product of its digits is 51200, while the sum is 37.

The square root of 255818242 is about 15994.3190539641. The cubic root of 255818242 is about 634.8101128965.

The spelling of 255818242 in words is "two hundred fifty-five million, eight hundred eighteen thousand, two hundred forty-two".