5606221 has 4 divisors (see below), whose sum is σ = 5618844. Its totient is φ = 5593600.

The previous prime is 5606191. The next prime is 5606261. The reversal of 5606221 is 1226065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1550025 + 4056196 = 1245^2 + 2014^2 .

It is a cyclic number.

It is not a de Polignac number, because 5606221 - 2⁵ = 5606189 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5606192 and 5606201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5606261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5620 + ... + 6541.

It is an arithmetic number, because the mean of its divisors is an integer number (1404711).

Almost surely, 2^5606221 is an apocalyptic number.

It is an amenable number.

5606221 is a deficient number, since it is larger than the sum of its proper divisors (12623).

5606221 is a wasteful number, since it uses less digits than its factorization.

5606221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12622.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 5606221 is about 2367.7459745505. The cubic root of 5606221 is about 177.6465337612.

The spelling of 5606221 in words is "five million, six hundred six thousand, two hundred twenty-one".