33225389 has 4 divisors (see below), whose sum is σ = 33302556. Its totient is φ = 33148224.

The previous prime is 33225349. The next prime is 33225403. The reversal of 33225389 is 98352233.

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 21949225 + 11276164 = 4685^2 + 3358^2 .

It is a cyclic number.

It is not a de Polignac number, because 33225389 - 2¹⁶ = 33159853 is a prime.

It is a super-2 number, since 2×33225389² = 2207852948402642, 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 (33225349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37934 + ... + 38799.

It is an arithmetic number, because the mean of its divisors is an integer number (8325639).

Almost surely, 2^33225389 is an apocalyptic number.

It is an amenable number.

33225389 is a deficient number, since it is larger than the sum of its proper divisors (77167).

33225389 is an equidigital number, since it uses as much as digits as its factorization.

33225389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77166.

The product of its digits is 38880, while the sum is 35.

The square root of 33225389 is about 5764.1468579487. The cubic root of 33225389 is about 321.4820221705.

The spelling of 33225389 in words is "thirty-three million, two hundred twenty-five thousand, three hundred eighty-nine".