255320242 has 8 divisors (see below), whose sum is σ = 383106096. Its totient is φ = 127618212.

The previous prime is 255320231. The next prime is 255320257. The reversal of 255320242 is 242023552.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12688 + ... + 25915.

It is an arithmetic number, because the mean of its divisors is an integer number (47888262).

Almost surely, 2^255320242 is an apocalyptic number.

255320242 is a deficient number, since it is larger than the sum of its proper divisors (127785854).

255320242 is a wasteful number, since it uses less digits than its factorization.

255320242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41912.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 255320242 is about 15978.7434424613. The cubic root of 255320242 is about 634.3979181606.

Adding to 255320242 its reverse (242023552), we get a palindrome (497343794).

The spelling of 255320242 in words is "two hundred fifty-five million, three hundred twenty thousand, two hundred forty-two".