33253225 has 6 divisors (see below), whose sum is σ = 41234030. Its totient is φ = 26602560.

The previous prime is 33253223. The next prime is 33253229. The reversal of 33253225 is 52235233.

It can be written as a sum of positive squares in 3 ways, for example, as 10471696 + 22781529 = 3236^2 + 4773^2 .

It is not a de Polignac number, because 33253225 - 2¹ = 33253223 is a prime.

It is a super-2 number, since 2×33253225² = 2211553945801250, 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: 1330129 = 33253225 / (3 + 3 + 2 + 5 + 3 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 33253225.

It is not an unprimeable number, because it can be changed into a prime (33253223) 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 5 ways as a sum of consecutive naturals, for example, 665040 + ... + 665089.

It is a self-describing number.

Almost surely, 2^33253225 is an apocalyptic number.

It is an amenable number.

33253225 is a deficient number, since it is larger than the sum of its proper divisors (7980805).

33253225 is a wasteful number, since it uses less digits than its factorization.

33253225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330139 (or 1330134 counting only the distinct ones).

The product of its digits is 5400, while the sum is 25.

The square root of 33253225 is about 5766.5609335201. The cubic root of 33253225 is about 321.5717755782.

Adding to 33253225 its reverse (52235233), we get a palindrome (85488458).

The spelling of 33253225 in words is "thirty-three million, two hundred fifty-three thousand, two hundred twenty-five".