513423317 has 4 divisors (see below), whose sum is σ = 560098176. Its totient is φ = 466748460.

The previous prime is 513423293. The next prime is 513423329. The reversal of 513423317 is 713324315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513423317 - 2²⁰ = 512374741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513423317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513423367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23337413 + ... + 23337434.

It is an arithmetic number, because the mean of its divisors is an integer number (140024544).

Almost surely, 2^513423317 is an apocalyptic number.

It is an amenable number.

513423317 is a deficient number, since it is larger than the sum of its proper divisors (46674859).

513423317 is a wasteful number, since it uses less digits than its factorization.

513423317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46674858.

The product of its digits is 7560, while the sum is 29.

The square root of 513423317 is about 22658.8463298554. The cubic root of 513423317 is about 800.7406250690.

The spelling of 513423317 in words is "five hundred thirteen million, four hundred twenty-three thousand, three hundred seventeen".