513404013 has 8 divisors (see below), whose sum is σ = 684684576. Its totient is φ = 342196400.

The previous prime is 513404011. The next prime is 513404039. The reversal of 513404013 is 310404315.

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 513404013 - 2¹ = 513404011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513404011) 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, 1123 + ... + 32063.

It is an arithmetic number, because the mean of its divisors is an integer number (85585572).

Almost surely, 2^513404013 is an apocalyptic number.

It is an amenable number.

513404013 is a deficient number, since it is larger than the sum of its proper divisors (171280563).

513404013 is a wasteful number, since it uses less digits than its factorization.

513404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36475.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 513404013 is about 22658.4203553558. The cubic root of 513404013 is about 800.7305893667.

Adding to 513404013 its reverse (310404315), we get a palindrome (823808328).

The spelling of 513404013 in words is "five hundred thirteen million, four hundred four thousand, thirteen".