22133533 has 2 divisors, whose sum is σ = 22133534. Its totient is φ = 22133532.

The previous prime is 22133491. The next prime is 22133539. The reversal of 22133533 is 33533122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19829209 + 2304324 = 4453^2 + 1518^2 .

It is a cyclic number.

It is not a de Polignac number, because 22133533 - 2⁹ = 22133021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22133539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11066766 + 11066767.

It is an arithmetic number, because the mean of its divisors is an integer number (11066767).

Almost surely, 2^22133533 is an apocalyptic number.

It is an amenable number.

22133533 is a deficient number, since it is larger than the sum of its proper divisors (1).

22133533 is an equidigital number, since it uses as much as digits as its factorization.

22133533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 22.

The square root of 22133533 is about 4704.6288907841. The cubic root of 22133533 is about 280.7697061566.

Adding to 22133533 its reverse (33533122), we get a palindrome (55666655).

The spelling of 22133533 in words is "twenty-two million, one hundred thirty-three thousand, five hundred thirty-three".