5221217 has 2 divisors, whose sum is σ = 5221218. Its totient is φ = 5221216.

The previous prime is 5221211. The next prime is 5221231. The reversal of 5221217 is 7121225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5058001 + 163216 = 2249^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 5221217 - 2⁸ = 5220961 is a prime.

It is a super-2 number, since 2×5221217² = 54522213922178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610608 + 2610609.

It is an arithmetic number, because the mean of its divisors is an integer number (2610609).

Almost surely, 2^5221217 is an apocalyptic number.

It is an amenable number.

5221217 is a deficient number, since it is larger than the sum of its proper divisors (1).

5221217 is an equidigital number, since it uses as much as digits as its factorization.

5221217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 280, while the sum is 20.

The square root of 5221217 is about 2284.9982494523. The cubic root of 5221217 is about 173.4831294655.

The spelling of 5221217 in words is "five million, two hundred twenty-one thousand, two hundred seventeen".