255212315 has 4 divisors (see below), whose sum is σ = 306254784. Its totient is φ = 204169848.

The previous prime is 255212311. The next prime is 255212317. The reversal of 255212315 is 513212552.

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 255212315 - 2² = 255212311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255212311) by changing a digit.

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, 25521227 + ... + 25521236.

It is an arithmetic number, because the mean of its divisors is an integer number (76563696).

Almost surely, 2^255212315 is an apocalyptic number.

255212315 is a deficient number, since it is larger than the sum of its proper divisors (51042469).

255212315 is an equidigital number, since it uses as much as digits as its factorization.

255212315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51042468.

The product of its digits is 3000, while the sum is 26.

The square root of 255212315 is about 15975.3658800041. The cubic root of 255212315 is about 634.3085163002.

Adding to 255212315 its reverse (513212552), we get a palindrome (768424867).

The spelling of 255212315 in words is "two hundred fifty-five million, two hundred twelve thousand, three hundred fifteen".