255224015 has 4 divisors (see below), whose sum is σ = 306268824. Its totient is φ = 204179208.

The previous prime is 255223993. The next prime is 255224033. The reversal of 255224015 is 510422552.

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

It is a cyclic number.

It is not a de Polignac number, because 255224015 - 2⁶ = 255223951 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 25522397 + ... + 25522406.

It is an arithmetic number, because the mean of its divisors is an integer number (76567206).

Almost surely, 2^255224015 is an apocalyptic number.

255224015 is a deficient number, since it is larger than the sum of its proper divisors (51044809).

255224015 is an equidigital number, since it uses as much as digits as its factorization.

255224015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51044808.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 255224015 is about 15975.7320646035. The cubic root of 255224015 is about 634.3182092706.

Adding to 255224015 its reverse (510422552), we get a palindrome (765646567).

The spelling of 255224015 in words is "two hundred fifty-five million, two hundred twenty-four thousand, fifteen".