5243221 has 8 divisors (see below), whose sum is σ = 5556320. Its totient is φ = 4933872.

The previous prime is 5243207. The next prime is 5243239. The reversal of 5243221 is 1223425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5243221 - 2⁷ = 5243093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a d-powerful number, because it can be written as 5² + 2³ + 4³ + 3⁵ + 2²⁰ + 2²² + 1 .

It is a Duffinian number.

5243221 is a lucky number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2251 + ... + 3943.

It is an arithmetic number, because the mean of its divisors is an integer number (694540).

Almost surely, 2^5243221 is an apocalyptic number.

It is an amenable number.

5243221 is a deficient number, since it is larger than the sum of its proper divisors (313099).

5243221 is a wasteful number, since it uses less digits than its factorization.

5243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875.

The product of its digits is 480, while the sum is 19.

The square root of 5243221 is about 2289.8080705596. The cubic root of 5243221 is about 173.7264937232.

Adding to 5243221 its reverse (1223425), we get a palindrome (6466646).

The spelling of 5243221 in words is "five million, two hundred forty-three thousand, two hundred twenty-one".