513505505 has 8 divisors (see below), whose sum is σ = 616329600. Its totient is φ = 410722416.

The previous prime is 513505493. The next prime is 513505529. The reversal of 513505505 is 505505315.

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 513505505 - 2¹² = 513501409 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 7 ways as a sum of consecutive naturals, for example, 37706 + ... + 49484.

It is an arithmetic number, because the mean of its divisors is an integer number (77041200).

Almost surely, 2^513505505 is an apocalyptic number.

It is an amenable number.

513505505 is a deficient number, since it is larger than the sum of its proper divisors (102824095).

513505505 is a wasteful number, since it uses less digits than its factorization.

513505505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20503.

The product of its (nonzero) digits is 9375, while the sum is 29.

The square root of 513505505 is about 22660.6598535877. The cubic root of 513505505 is about 800.7833498908.

The spelling of 513505505 in words is "five hundred thirteen million, five hundred five thousand, five hundred five".