255008242 has 4 divisors (see below), whose sum is σ = 382512366. Its totient is φ = 127504120.

The previous prime is 255008239. The next prime is 255008293. The reversal of 255008242 is 242800552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 161518681 + 93489561 = 12709^2 + 9669^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 255008242.

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 as a sum of consecutive naturals, namely, 63752059 + ... + 63752062.

Almost surely, 2^255008242 is an apocalyptic number.

255008242 is a deficient number, since it is larger than the sum of its proper divisors (127504124).

255008242 is a wasteful number, since it uses less digits than its factorization.

255008242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127504123.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 255008242 is about 15968.9774876164. The cubic root of 255008242 is about 634.1394025180.

Adding to 255008242 its reverse (242800552), we get a palindrome (497808794).

The spelling of 255008242 in words is "two hundred fifty-five million, eight thousand, two hundred forty-two".