33132225 has 48 divisors (see below), whose sum is σ = 63107072. Its totient is φ = 15024960.

The previous prime is 33132163. The next prime is 33132241. The reversal of 33132225 is 52223133.

It is not a de Polignac number, because 33132225 - 2⁶ = 33132161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116934 + ... + 117216.

Almost surely, 2^33132225 is an apocalyptic number.

33132225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33132225 is a deficient number, since it is larger than the sum of its proper divisors (29974847).

33132225 is a wasteful number, since it uses less digits than its factorization.

33132225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 521 counting only the distinct ones).

The product of its digits is 1080, while the sum is 21.

The square root of 33132225 is about 5756.0598502795. The cubic root of 33132225 is about 321.1812623250.

Adding to 33132225 its reverse (52223133), we get a palindrome (85355358).

The spelling of 33132225 in words is "thirty-three million, one hundred thirty-two thousand, two hundred twenty-five".