5603221 has 4 divisors (see below), whose sum is σ = 6034252. Its totient is φ = 5172192.

The previous prime is 5603209. The next prime is 5603231. The reversal of 5603221 is 1223065.

It is a happy number.

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 1134225 + 4468996 = 1065^2 + 2114^2 .

It is a cyclic number.

It is not a de Polignac number, because 5603221 - 2⁵ = 5603189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5603231) 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, 215496 + ... + 215521.

It is an arithmetic number, because the mean of its divisors is an integer number (1508563).

Almost surely, 2^5603221 is an apocalyptic number.

It is an amenable number.

5603221 is a deficient number, since it is larger than the sum of its proper divisors (431031).

5603221 is a wasteful number, since it uses less digits than its factorization.

5603221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431030.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 5603221 is about 2367.1123758707. The cubic root of 5603221 is about 177.6148407133.

Adding to 5603221 its reverse (1223065), we get a palindrome (6826286).

The spelling of 5603221 in words is "five million, six hundred three thousand, two hundred twenty-one".