33413525 has 12 divisors (see below), whose sum is σ = 41701572. Its totient is φ = 26557440.

The previous prime is 33413521. The next prime is 33413531. The reversal of 33413525 is 52531433.

It can be written as a sum of positive squares in 6 ways, for example, as 155236 + 33258289 = 394^2 + 5767^2 .

It is not a de Polignac number, because 33413525 - 2² = 33413521 is a prime.

It is a super-2 number, since 2×33413525² = 2232927305851250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33413494 and 33413503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33413521) 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 11 ways as a sum of consecutive naturals, for example, 332 + ... + 8181.

It is an arithmetic number, because the mean of its divisors is an integer number (3475131).

Almost surely, 2^33413525 is an apocalyptic number.

It is an amenable number.

33413525 is a deficient number, since it is larger than the sum of its proper divisors (8288047).

33413525 is a wasteful number, since it uses less digits than its factorization.

33413525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8680 (or 8675 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 33413525 is about 5780.4433220991. The cubic root of 33413525 is about 322.0876688618.

Adding to 33413525 its reverse (52531433), we get a palindrome (85944958).

The spelling of 33413525 in words is "thirty-three million, four hundred thirteen thousand, five hundred twenty-five".