520352213 has 4 divisors (see below), whose sum is σ = 520399968. Its totient is φ = 520304460.

The previous prime is 520352179. The next prime is 520352233. The reversal of 520352213 is 312253025.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 520352213 - 2¹⁰ = 520351189 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 (520352233) 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, 1358 + ... + 32288.

It is an arithmetic number, because the mean of its divisors is an integer number (130099992).

Almost surely, 2^520352213 is an apocalyptic number.

It is an amenable number.

520352213 is a deficient number, since it is larger than the sum of its proper divisors (47755).

520352213 is a wasteful number, since it uses less digits than its factorization.

520352213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47754.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 520352213 is about 22811.2299756063. The cubic root of 520352213 is about 804.3266686751.

The spelling of 520352213 in words is "five hundred twenty million, three hundred fifty-two thousand, two hundred thirteen".