513325343 has 4 divisors (see below), whose sum is σ = 513424128. Its totient is φ = 513226560.

The previous prime is 513325333. The next prime is 513325349. The reversal of 513325343 is 343523315.

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 513325343 - 2⁴ = 513325327 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 (513325349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 41138 + ... + 52143.

It is an arithmetic number, because the mean of its divisors is an integer number (128356032).

Almost surely, 2^513325343 is an apocalyptic number.

513325343 is a deficient number, since it is larger than the sum of its proper divisors (98785).

513325343 is an equidigital number, since it uses as much as digits as its factorization.

513325343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98784.

The product of its digits is 16200, while the sum is 29.

The square root of 513325343 is about 22656.6842896307. The cubic root of 513325343 is about 800.6896880546.

Adding to 513325343 its reverse (343523315), we get a palindrome (856848658).

The spelling of 513325343 in words is "five hundred thirteen million, three hundred twenty-five thousand, three hundred forty-three".