255245242 has 16 divisors (see below), whose sum is σ = 463302720. Its totient is φ = 102955968.

The previous prime is 255245201. The next prime is 255245257. The reversal of 255245242 is 242542552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535992 + ... + 536467.

It is an arithmetic number, because the mean of its divisors is an integer number (28956420).

Almost surely, 2^255245242 is an apocalyptic number.

255245242 is a deficient number, since it is larger than the sum of its proper divisors (208057478).

255245242 is a wasteful number, since it uses less digits than its factorization.

255245242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072485.

The product of its digits is 32000, while the sum is 31.

The square root of 255245242 is about 15976.3964021928. The cubic root of 255245242 is about 634.3357942137.

Adding to 255245242 its reverse (242542552), we get a palindrome (497787794).

The spelling of 255245242 in words is "two hundred fifty-five million, two hundred forty-five thousand, two hundred forty-two".