33025109 has 4 divisors (see below), whose sum is σ = 35565516. Its totient is φ = 30484704.

The previous prime is 33025103. The next prime is 33025121. The reversal of 33025109 is 90152033.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90152033 = 229 ⋅393677.

It can be written as a sum of positive squares in 2 ways, for example, as 21362884 + 11662225 = 4622^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 33025109 - 2⁸ = 33024853 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 (33025103) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270184 + ... + 1270209.

It is an arithmetic number, because the mean of its divisors is an integer number (8891379).

Almost surely, 2^33025109 is an apocalyptic number.

It is an amenable number.

33025109 is a deficient number, since it is larger than the sum of its proper divisors (2540407).

33025109 is a wasteful number, since it uses less digits than its factorization.

33025109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540406.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 33025109 is about 5746.7476889107. The cubic root of 33025109 is about 320.8347638699.

The spelling of 33025109 in words is "thirty-three million, twenty-five thousand, one hundred nine".