33425225 has 12 divisors (see below), whose sum is σ = 42330624. Its totient is φ = 26170320.

The previous prime is 33425221. The next prime is 33425297. The reversal of 33425225 is 52252433.

It is not a de Polignac number, because 33425225 - 2² = 33425221 is a prime.

It is a super-2 number, since 2×33425225² = 2234491332601250, 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 = 33425194 and 33425203.

It is not an unprimeable number, because it can be changed into a prime (33425221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13049 + ... + 15398.

It is an arithmetic number, because the mean of its divisors is an integer number (3527552).

Almost surely, 2^33425225 is an apocalyptic number.

It is an amenable number.

33425225 is a deficient number, since it is larger than the sum of its proper divisors (8905399).

33425225 is a wasteful number, since it uses less digits than its factorization.

33425225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28504 (or 28499 counting only the distinct ones).

The product of its digits is 7200, while the sum is 26.

The square root of 33425225 is about 5781.4552666262. The cubic root of 33425225 is about 322.1252582907.

Adding to 33425225 its reverse (52252433), we get a palindrome (85677658).

The spelling of 33425225 in words is "thirty-three million, four hundred twenty-five thousand, two hundred twenty-five".