33313225 has 12 divisors (see below), whose sum is σ = 45064080. Its totient is φ = 24227600.

The previous prime is 33313219. The next prime is 33313237. The reversal of 33313225 is 52231333.

It is a happy number.

It is not a de Polignac number, because 33313225 - 2¹⁷ = 33182153 is a prime.

It is a super-2 number, since 2×33313225² = 2219541919801250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33313196 and 33313205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60295 + ... + 60844.

It is an arithmetic number, because the mean of its divisors is an integer number (3755340).

Almost surely, 2^33313225 is an apocalyptic number.

It is an amenable number.

33313225 is a deficient number, since it is larger than the sum of its proper divisors (11750855).

33313225 is a wasteful number, since it uses less digits than its factorization.

33313225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121160 (or 121155 counting only the distinct ones).

The product of its digits is 1620, while the sum is 22.

The square root of 33313225 is about 5771.7609964377. The cubic root of 33313225 is about 321.7650672432.

Subtracting from 33313225 its sum of digits (22), we obtain a triangular number (33313203 = T₈₁₆₂).

Adding to 33313225 its reverse (52231333), we get a palindrome (85544558).

It can be divided in two parts, 3331 and 3225, that added together give a palindrome (6556).

The spelling of 33313225 in words is "thirty-three million, three hundred thirteen thousand, two hundred twenty-five".