33012825 has 12 divisors (see below), whose sum is σ = 54581328. Its totient is φ = 17606800.

The previous prime is 33012821. The next prime is 33012829. The reversal of 33012825 is 52821033.

It is an interprime number because it is at equal distance from previous prime (33012821) and next prime (33012829).

It is not a de Polignac number, because 33012825 - 2² = 33012821 is a prime.

It is a super-2 number, since 2×33012825² = 2179693228961250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33012795 and 33012804.

It is not an unprimeable number, because it can be changed into a prime (33012821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220011 + ... + 220160.

It is an arithmetic number, because the mean of its divisors is an integer number (4548444).

Almost surely, 2^33012825 is an apocalyptic number.

It is an amenable number.

33012825 is a deficient number, since it is larger than the sum of its proper divisors (21568503).

33012825 is a wasteful number, since it uses less digits than its factorization.

33012825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440184 (or 440179 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 33012825 is about 5745.6788110718. The cubic root of 33012825 is about 320.7949797671.

Adding to 33012825 its reverse (52821033), we get a palindrome (85833858).

The spelling of 33012825 in words is "thirty-three million, twelve thousand, eight hundred twenty-five".