504212213 has 4 divisors (see below), whose sum is σ = 505315980. Its totient is φ = 503108448.

The previous prime is 504212131. The next prime is 504212237. The reversal of 504212213 is 312212405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 351862564 + 152349649 = 18758^2 + 12343^2 .

It is a cyclic number.

It is not a de Polignac number, because 504212213 - 2¹⁶ = 504146677 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 (504212263) 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, 551198 + ... + 552111.

It is an arithmetic number, because the mean of its divisors is an integer number (126328995).

Almost surely, 2^504212213 is an apocalyptic number.

It is an amenable number.

504212213 is a deficient number, since it is larger than the sum of its proper divisors (1103767).

504212213 is a wasteful number, since it uses less digits than its factorization.

504212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103766.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 504212213 is about 22454.6701823919. The cubic root of 504212213 is about 795.9231200423.

Adding to 504212213 its reverse (312212405), we get a palindrome (816424618).

The spelling of 504212213 in words is "five hundred four million, two hundred twelve thousand, two hundred thirteen".