5221813 has 4 divisors (see below), whose sum is σ = 5259520. Its totient is φ = 5184108.

The previous prime is 5221793. The next prime is 5221817. The reversal of 5221813 is 3181225.

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 5221813 - 2⁵ = 5221781 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 (5221817) 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, 18645 + ... + 18922.

It is an arithmetic number, because the mean of its divisors is an integer number (1314880).

Almost surely, 2^5221813 is an apocalyptic number.

It is an amenable number.

5221813 is a deficient number, since it is larger than the sum of its proper divisors (37707).

5221813 is a wasteful number, since it uses less digits than its factorization.

5221813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37706.

The product of its digits is 480, while the sum is 22.

The square root of 5221813 is about 2285.1286615856. The cubic root of 5221813 is about 173.4897302262.

The spelling of 5221813 in words is "five million, two hundred twenty-one thousand, eight hundred thirteen".