5220321 has 8 divisors (see below), whose sum is σ = 6978720. Its totient is φ = 3471072.

The previous prime is 5220283. The next prime is 5220323. The reversal of 5220321 is 1230225.

5220321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5220321 - 2¹⁴ = 5203937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5220321.

It is not an unprimeable number, because it can be changed into a prime (5220323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820 + ... + 3333.

It is an arithmetic number, because the mean of its divisors is an integer number (872340).

Almost surely, 2^5220321 is an apocalyptic number.

It is an amenable number.

5220321 is a deficient number, since it is larger than the sum of its proper divisors (1758399).

5220321 is a wasteful number, since it uses less digits than its factorization.

5220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 5220321 is about 2284.8021796208. The cubic root of 5220321 is about 173.4732052291.

Adding to 5220321 its reverse (1230225), we get a palindrome (6450546).

The spelling of 5220321 in words is "five million, two hundred twenty thousand, three hundred twenty-one".