513016487 has 4 divisors (see below), whose sum is σ = 513362976. Its totient is φ = 512670000.

The previous prime is 513016481. The next prime is 513016499. The reversal of 513016487 is 784610315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513016487 - 2¹⁰ = 513015463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513016481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171014 + ... + 173987.

It is an arithmetic number, because the mean of its divisors is an integer number (128340744).

Almost surely, 2^513016487 is an apocalyptic number.

513016487 is a deficient number, since it is larger than the sum of its proper divisors (346489).

513016487 is a wasteful number, since it uses less digits than its factorization.

513016487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346488.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 513016487 is about 22649.8672623042. The cubic root of 513016487 is about 800.5290703411.

The spelling of 513016487 in words is "five hundred thirteen million, sixteen thousand, four hundred eighty-seven".