33243325 has 6 divisors (see below), whose sum is σ = 41221754. Its totient is φ = 26594640.

The previous prime is 33243311. The next prime is 33243383. The reversal of 33243325 is 52334233.

It can be written as a sum of positive squares in 3 ways, for example, as 11471769 + 21771556 = 3387^2 + 4666^2 .

It is not a de Polignac number, because 33243325 - 2¹⁵ = 33210557 is a prime.

It is a super-2 number, since 2×33243325² = 2210237314111250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1329733 = 33243325 / (3 + 3 + 2 + 4 + 3 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33243325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 664842 + ... + 664891.

Almost surely, 2^33243325 is an apocalyptic number.

It is an amenable number.

33243325 is a deficient number, since it is larger than the sum of its proper divisors (7978429).

33243325 is a wasteful number, since it uses less digits than its factorization.

33243325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329743 (or 1329738 counting only the distinct ones).

The product of its digits is 6480, while the sum is 25.

The square root of 33243325 is about 5765.7024723792. The cubic root of 33243325 is about 321.5398601118.

Adding to 33243325 its reverse (52334233), we get a palindrome (85577558).

The spelling of 33243325 in words is "thirty-three million, two hundred forty-three thousand, three hundred twenty-five".