255120515 has 8 divisors (see below), whose sum is σ = 329694288. Its totient is φ = 188396640.

The previous prime is 255120499. The next prime is 255120517. The reversal of 255120515 is 515021552.

255120515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 255120515 - 2⁴ = 255120499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255120517) 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, 1962401 + ... + 1962530.

It is an arithmetic number, because the mean of its divisors is an integer number (41211786).

Almost surely, 2^255120515 is an apocalyptic number.

255120515 is a deficient number, since it is larger than the sum of its proper divisors (74573773).

255120515 is a wasteful number, since it uses less digits than its factorization.

255120515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924949.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 255120515 is about 15972.4924479556. The cubic root of 255120515 is about 634.2324534805.

The spelling of 255120515 in words is "two hundred fifty-five million, one hundred twenty thousand, five hundred fifteen".