33985225 has 12 divisors (see below), whose sum is σ = 42254860. Its totient is φ = 27115200.

The previous prime is 33985213. The next prime is 33985229. The reversal of 33985225 is 52258933.

It can be written as a sum of positive squares in 6 ways, for example, as 10916416 + 23068809 = 3304^2 + 4803^2 .

It is not a de Polignac number, because 33985225 - 2¹⁷ = 33854153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33985229) 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, 8911 + ... + 12139.

Almost surely, 2^33985225 is an apocalyptic number.

It is an amenable number.

33985225 is a deficient number, since it is larger than the sum of its proper divisors (8269635).

33985225 is a wasteful number, since it uses less digits than its factorization.

33985225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3655 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 33985225 is about 5829.6848113770. The cubic root of 33985225 is about 323.9142465989.

The spelling of 33985225 in words is "thirty-three million, nine hundred eighty-five thousand, two hundred twenty-five".