522500213 has 4 divisors (see below), whose sum is σ = 522660960. Its totient is φ = 522339468.

The previous prime is 522500203. The next prime is 522500227. The reversal of 522500213 is 312005225.

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 522500213 - 2²⁸ = 254064757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522500203) 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, 75395 + ... + 82032.

It is an arithmetic number, because the mean of its divisors is an integer number (130665240).

Almost surely, 2^522500213 is an apocalyptic number.

It is an amenable number.

522500213 is a deficient number, since it is larger than the sum of its proper divisors (160747).

522500213 is a wasteful number, since it uses less digits than its factorization.

522500213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160746.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 522500213 is about 22858.2635604720. The cubic root of 522500213 is about 805.4318956009.

Adding to 522500213 its reverse (312005225), we get a palindrome (834505438).

The spelling of 522500213 in words is "five hundred twenty-two million, five hundred thousand, two hundred thirteen".