255322515 has 32 divisors (see below), whose sum is σ = 474541056. Its totient is φ = 114802560.

The previous prime is 255322499. The next prime is 255322531. The reversal of 255322515 is 515223552.

It is an interprime number because it is at equal distance from previous prime (255322499) and next prime (255322531).

It is not a de Polignac number, because 255322515 - 2⁴ = 255322499 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13527 + ... + 26336.

It is an arithmetic number, because the mean of its divisors is an integer number (14829408).

Almost surely, 2^255322515 is an apocalyptic number.

255322515 is a deficient number, since it is larger than the sum of its proper divisors (219218541).

255322515 is a wasteful number, since it uses less digits than its factorization.

255322515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39939.

The product of its digits is 15000, while the sum is 30.

The square root of 255322515 is about 15978.8145680460. The cubic root of 255322515 is about 634.3998007404.

The spelling of 255322515 in words is "two hundred fifty-five million, three hundred twenty-two thousand, five hundred fifteen".