33240533 has 2 divisors, whose sum is σ = 33240534. Its totient is φ = 33240532.

The previous prime is 33240503. The next prime is 33240539. The reversal of 33240533 is 33504233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25633969 + 7606564 = 5063^2 + 2758^2 .

It is a cyclic number.

It is not a de Polignac number, because 33240533 - 2¹⁰ = 33239509 is a prime.

It is a super-2 number, since 2×33240533² = 2209866068248178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33240499 and 33240508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33240539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16620266 + 16620267.

It is an arithmetic number, because the mean of its divisors is an integer number (16620267).

Almost surely, 2^33240533 is an apocalyptic number.

It is an amenable number.

33240533 is a deficient number, since it is larger than the sum of its proper divisors (1).

33240533 is an equidigital number, since it uses as much as digits as its factorization.

33240533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 23.

The square root of 33240533 is about 5765.4603458874. The cubic root of 33240533 is about 321.5308581600.

Adding to 33240533 its reverse (33504233), we get a palindrome (66744766).

The spelling of 33240533 in words is "thirty-three million, two hundred forty thousand, five hundred thirty-three".