22225603 has 4 divisors (see below), whose sum is σ = 22645008. Its totient is φ = 21806200.

The previous prime is 22225601. The next prime is 22225607. The reversal of 22225603 is 30652222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30652222 = 2 ⋅15326111.

It is a cyclic number.

It is not a de Polignac number, because 22225603 - 2¹ = 22225601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22225601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209623 + ... + 209728.

It is an arithmetic number, because the mean of its divisors is an integer number (5661252).

Almost surely, 2^22225603 is an apocalyptic number.

22225603 is a deficient number, since it is larger than the sum of its proper divisors (419405).

22225603 is an equidigital number, since it uses as much as digits as its factorization.

22225603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419404.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 22225603 is about 4714.4037799069. The cubic root of 22225603 is about 281.1584783364.

Adding to 22225603 its reverse (30652222), we get a palindrome (52877825).

It can be divided in two parts, 22 and 225603, that added together give a square (225625 = 475²).

The spelling of 22225603 in words is "twenty-two million, two hundred twenty-five thousand, six hundred three".