5207221 has 2 divisors, whose sum is σ = 5207222. Its totient is φ = 5207220.

The previous prime is 5207207. The next prime is 5207239. The reversal of 5207221 is 1227025.

5207221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2924100 + 2283121 = 1710^2 + 1511^2 .

It is a cyclic number.

It is not a de Polignac number, because 5207221 - 2¹¹ = 5205173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5207201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2603610 + 2603611.

It is an arithmetic number, because the mean of its divisors is an integer number (2603611).

Almost surely, 2^5207221 is an apocalyptic number.

It is an amenable number.

5207221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5207221 is an equidigital number, since it uses as much as digits as its factorization.

5207221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 5207221 is about 2281.9336099019. The cubic root of 5207221 is about 173.3279777274.

The spelling of 5207221 in words is "five million, two hundred seven thousand, two hundred twenty-one".