513255515 has 8 divisors (see below), whose sum is σ = 619099008. Its totient is φ = 408476160.

The previous prime is 513255487. The next prime is 513255553. The reversal of 513255515 is 515552315.

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

It is not a de Polignac number, because 513255515 - 2¹² = 513251419 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 264971 + ... + 266900.

It is an arithmetic number, because the mean of its divisors is an integer number (77387376).

Almost surely, 2^513255515 is an apocalyptic number.

513255515 is a deficient number, since it is larger than the sum of its proper divisors (105843493).

513255515 is a wasteful number, since it uses less digits than its factorization.

513255515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532069.

The product of its digits is 18750, while the sum is 32.

The square root of 513255515 is about 22655.1432350361. The cubic root of 513255515 is about 800.6533802850.

The spelling of 513255515 in words is "five hundred thirteen million, two hundred fifty-five thousand, five hundred fifteen".