33858225 has 36 divisors (see below), whose sum is σ = 62747100. Its totient is φ = 17431680.

The previous prime is 33858217. The next prime is 33858229. The reversal of 33858225 is 52285833.

It can be written as a sum of positive squares in 6 ways, for example, as 20736 + 33837489 = 144^2 + 5817^2 .

It is not a de Polignac number, because 33858225 - 2³ = 33858217 is a prime.

It is a super-2 number, since 2×33858225² = 2292758800301250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33858225.

It is not an unprimeable number, because it can be changed into a prime (33858229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3931 + ... + 9119.

It is an arithmetic number, because the mean of its divisors is an integer number (1742975).

Almost surely, 2^33858225 is an apocalyptic number.

It is an amenable number.

33858225 is a deficient number, since it is larger than the sum of its proper divisors (28888875).

33858225 is a wasteful number, since it uses less digits than its factorization.

33858225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5234 (or 5226 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 33858225 is about 5818.7820890630. The cubic root of 33858225 is about 323.5102626326.

The spelling of 33858225 in words is "thirty-three million, eight hundred fifty-eight thousand, two hundred twenty-five".