5204321 has 2 divisors, whose sum is σ = 5204322. Its totient is φ = 5204320.

The previous prime is 5204267. The next prime is 5204323. The reversal of 5204321 is 1234025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5107600 + 96721 = 2260^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 5204321 - 2⁶ = 5204257 is a prime.

Together with 5204323, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5204321.

It is not a weakly prime, because it can be changed into another prime (5204323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602160 + 2602161.

It is an arithmetic number, because the mean of its divisors is an integer number (2602161).

Almost surely, 2^5204321 is an apocalyptic number.

It is an amenable number.

5204321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5204321 is an equidigital number, since it uses as much as digits as its factorization.

5204321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 5204321 is about 2281.2980953834. The cubic root of 5204321 is about 173.2957952077.

Adding to 5204321 its reverse (1234025), we get a palindrome (6438346).

The spelling of 5204321 in words is "five million, two hundred four thousand, three hundred twenty-one".