255250515 has 16 divisors (see below), whose sum is σ = 439816608. Its totient is φ = 125661696.

The previous prime is 255250507. The next prime is 255250577. The reversal of 255250515 is 515052552.

It is not a de Polignac number, because 255250515 - 2³ = 255250507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654294 + ... + 654683.

It is an arithmetic number, because the mean of its divisors is an integer number (27488538).

Almost surely, 2^255250515 is an apocalyptic number.

255250515 is a deficient number, since it is larger than the sum of its proper divisors (184566093).

255250515 is a wasteful number, since it uses less digits than its factorization.

255250515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308998.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 255250515 is about 15976.5614260391. The cubic root of 255250515 is about 634.3401623390.

The spelling of 255250515 in words is "two hundred fifty-five million, two hundred fifty thousand, five hundred fifteen".