33040525 has 36 divisors (see below), whose sum is σ = 49511712. Its totient is φ = 21422880.

The previous prime is 33040523. The next prime is 33040529. The reversal of 33040525 is 52504033.

It is not a de Polignac number, because 33040525 - 2¹ = 33040523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33040496 and 33040505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33040523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 62914 + ... + 63436.

Almost surely, 2^33040525 is an apocalyptic number.

33040525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33040525 is a deficient number, since it is larger than the sum of its proper divisors (16471187).

33040525 is a wasteful number, since it uses less digits than its factorization.

33040525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 33040525 is about 5748.0888128142. The cubic root of 33040525 is about 320.8846776020.

Adding to 33040525 its reverse (52504033), we get a palindrome (85544558).

The spelling of 33040525 in words is "thirty-three million, forty thousand, five hundred twenty-five".