513044513 has 16 divisors (see below), whose sum is σ = 561913344. Its totient is φ = 466318080.

The previous prime is 513044507. The next prime is 513044537. The reversal of 513044513 is 315440315.

It is a cyclic number.

It is not a de Polignac number, because 513044513 - 2⁶ = 513044449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513044503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414131 + ... + 415367.

It is an arithmetic number, because the mean of its divisors is an integer number (35119584).

Almost surely, 2^513044513 is an apocalyptic number.

It is an amenable number.

513044513 is a deficient number, since it is larger than the sum of its proper divisors (48868831).

513044513 is a wasteful number, since it uses less digits than its factorization.

513044513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 513044513 is about 22650.4859329772. The cubic root of 513044513 is about 800.5436476628.

Adding to 513044513 its reverse (315440315), we get a palindrome (828484828).

The spelling of 513044513 in words is "five hundred thirteen million, forty-four thousand, five hundred thirteen".