33313425 has 12 divisors (see below), whose sum is σ = 55078320. Its totient is φ = 17767120.

The previous prime is 33313409. The next prime is 33313429. The reversal of 33313425 is 52431333.

It is a happy number.

It is not a de Polignac number, because 33313425 - 2⁴ = 33313409 is a prime.

It is a super-2 number, since 2×33313425² = 2219568570461250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33313395 and 33313404.

It is not an unprimeable number, because it can be changed into a prime (33313429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222015 + ... + 222164.

It is an arithmetic number, because the mean of its divisors is an integer number (4589860).

Almost surely, 2^33313425 is an apocalyptic number.

It is an amenable number.

33313425 is a deficient number, since it is larger than the sum of its proper divisors (21764895).

33313425 is a wasteful number, since it uses less digits than its factorization.

33313425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444192 (or 444187 counting only the distinct ones).

The product of its digits is 3240, while the sum is 24.

The square root of 33313425 is about 5771.7783221465. The cubic root of 33313425 is about 321.7657111605.

Adding to 33313425 its reverse (52431333), we get a palindrome (85744758).

The spelling of 33313425 in words is "thirty-three million, three hundred thirteen thousand, four hundred twenty-five".