33225321785 has 4 divisors (see below), whose sum is σ = 39870386148. Its totient is φ = 26580257424.

The previous prime is 33225321719. The next prime is 33225321797. The reversal of 33225321785 is 58712352233.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25662758416 + 7562563369 = 160196^2 + 86963^2 .

It is a cyclic number.

It is not a de Polignac number, because 33225321785 - 2³² = 28930354489 is a prime.

It is a super-2 number, since 2×33225321785² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3322532174 + ... + 3322532183.

It is an arithmetic number, because the mean of its divisors is an integer number (9967596537).

Almost surely, 2^33225321785 is an apocalyptic number.

It is an amenable number.

33225321785 is a deficient number, since it is larger than the sum of its proper divisors (6645064363).

33225321785 is an equidigital number, since it uses as much as digits as its factorization.

33225321785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6645064362.

The product of its digits is 302400, while the sum is 41.

The spelling of 33225321785 in words is "thirty-three billion, two hundred twenty-five million, three hundred twenty-one thousand, seven hundred eighty-five".