255042515 has 32 divisors (see below), whose sum is σ = 393071616. Its totient is φ = 154408320.

The previous prime is 255042493. The next prime is 255042521. The reversal of 255042515 is 515240552.

It is not a de Polignac number, because 255042515 - 2⁸ = 255042259 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 1721 + ... + 22650.

It is an arithmetic number, because the mean of its divisors is an integer number (12283488).

Almost surely, 2^255042515 is an apocalyptic number.

255042515 is a deficient number, since it is larger than the sum of its proper divisors (138029101).

255042515 is a wasteful number, since it uses less digits than its factorization.

255042515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24419.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 255042515 is about 15970.0505634766. The cubic root of 255042515 is about 634.1678106013.

The spelling of 255042515 in words is "two hundred fifty-five million, forty-two thousand, five hundred fifteen".