22572223 has 8 divisors (see below), whose sum is σ = 23999328. Its totient is φ = 21182304.

The previous prime is 22572211. The next prime is 22572227. The reversal of 22572223 is 32227522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22572223 - 2¹⁷ = 22441151 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 (22572227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8040 + ... + 10477.

It is an arithmetic number, because the mean of its divisors is an integer number (2999916).

Almost surely, 2^22572223 is an apocalyptic number.

22572223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22572223 is a deficient number, since it is larger than the sum of its proper divisors (1427105).

22572223 is a wasteful number, since it uses less digits than its factorization.

22572223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18593.

The product of its digits is 3360, while the sum is 25.

The square root of 22572223 is about 4751.0233634450. The cubic root of 22572223 is about 282.6125502402.

Adding to 22572223 its reverse (32227522), we get a palindrome (54799745).

The spelling of 22572223 in words is "twenty-two million, five hundred seventy-two thousand, two hundred twenty-three".