255245515 has 8 divisors (see below), whose sum is σ = 350051040. Its totient is φ = 175025472.

The previous prime is 255245491. The next prime is 255245519. The reversal of 255245515 is 515542552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255245515 - 2¹⁵ = 255212747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255245519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3646330 + ... + 3646399.

It is an arithmetic number, because the mean of its divisors is an integer number (43756380).

Almost surely, 2^255245515 is an apocalyptic number.

255245515 is a deficient number, since it is larger than the sum of its proper divisors (94805525).

255245515 is an equidigital number, since it uses as much as digits as its factorization.

255245515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292741.

The product of its digits is 50000, while the sum is 34.

The square root of 255245515 is about 15976.4049460447. The cubic root of 255245515 is about 634.3360203669.

The spelling of 255245515 in words is "two hundred fifty-five million, two hundred forty-five thousand, five hundred fifteen".