33430225 has 6 divisors (see below), whose sum is σ = 41453510. Its totient is φ = 26744160.

The previous prime is 33430223. The next prime is 33430249. The reversal of 33430225 is 52203433.

It can be written as a sum of positive squares in 3 ways, for example, as 528529 + 32901696 = 727^2 + 5736^2 .

It is not a de Polignac number, because 33430225 - 2¹ = 33430223 is a prime.

It is a super-2 number, since 2×33430225² = 2235159887101250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33430196 and 33430205.

It is not an unprimeable number, because it can be changed into a prime (33430223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 668580 + ... + 668629.

Almost surely, 2^33430225 is an apocalyptic number.

It is an amenable number.

33430225 is a deficient number, since it is larger than the sum of its proper divisors (8023285).

33430225 is a wasteful number, since it uses less digits than its factorization.

33430225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337219 (or 1337214 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 33430225 is about 5781.8876675356. The cubic root of 33430225 is about 322.1413194739.

Adding to 33430225 its reverse (52203433), we get a palindrome (85633658).

The spelling of 33430225 in words is "thirty-three million, four hundred thirty thousand, two hundred twenty-five".