22231533 has 8 divisors (see below), whose sum is σ = 29664000. Its totient is φ = 14810048.

The previous prime is 22231499. The next prime is 22231571. The reversal of 22231533 is 33513222.

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 22231533 - 2¹² = 22227437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22232533) 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, 5653 + ... + 8741.

It is an arithmetic number, because the mean of its divisors is an integer number (3708000).

Almost surely, 2^22231533 is an apocalyptic number.

It is an amenable number.

22231533 is a deficient number, since it is larger than the sum of its proper divisors (7432467).

22231533 is a wasteful number, since it uses less digits than its factorization.

22231533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491.

The product of its digits is 1080, while the sum is 21.

The square root of 22231533 is about 4715.0326616048. The cubic root of 22231533 is about 281.1834813553.

Adding to 22231533 its reverse (33513222), we get a palindrome (55744755).

The spelling of 22231533 in words is "twenty-two million, two hundred thirty-one thousand, five hundred thirty-three".