33225653 has 4 divisors (see below), whose sum is σ = 33298188. Its totient is φ = 33153120.

The previous prime is 33225641. The next prime is 33225671. The reversal of 33225653 is 35652233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35652233 = 929 ⋅38377.

It can be written as a sum of positive squares in 2 ways, for example, as 22972849 + 10252804 = 4793^2 + 3202^2 .

It is a cyclic number.

It is not a de Polignac number, because 33225653 - 2¹⁶ = 33160117 is a prime.

It is a super-2 number, since 2×33225653² = 2207888034552818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33225253) by changing a digit.

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, 35576 + ... + 36497.

It is an arithmetic number, because the mean of its divisors is an integer number (8324547).

Almost surely, 2^33225653 is an apocalyptic number.

It is an amenable number.

33225653 is a deficient number, since it is larger than the sum of its proper divisors (72535).

33225653 is an equidigital number, since it uses as much as digits as its factorization.

33225653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72534.

The product of its digits is 16200, while the sum is 29.

The square root of 33225653 is about 5764.1697580831. The cubic root of 33225653 is about 321.4828736381.

Adding to 33225653 its reverse (35652233), we get a palindrome (68877886).

The spelling of 33225653 in words is "thirty-three million, two hundred twenty-five thousand, six hundred fifty-three".