5612221 has 2 divisors, whose sum is σ = 5612222. Its totient is φ = 5612220.

The previous prime is 5612213. The next prime is 5612237. The reversal of 5612221 is 1222165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3404025 + 2208196 = 1845^2 + 1486^2 .

It is a cyclic number.

It is not a de Polignac number, because 5612221 - 2³ = 5612213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5612281) 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, 2806110 + 2806111.

It is an arithmetic number, because the mean of its divisors is an integer number (2806111).

Almost surely, 2^5612221 is an apocalyptic number.

It is an amenable number.

5612221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5612221 is an equidigital number, since it uses as much as digits as its factorization.

5612221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 5612221 is about 2369.0126635373. The cubic root of 5612221 is about 177.7098859539.

Adding to 5612221 its reverse (1222165), we get a palindrome (6834386).

The spelling of 5612221 in words is "five million, six hundred twelve thousand, two hundred twenty-one".