33215056 has 20 divisors (see below), whose sum is σ = 73547872. Its totient is φ = 14234976.

The previous prime is 33215051. The next prime is 33215071. The reversal of 33215056 is 65051233.

It is a happy number.

It is a super-2 number, since 2×33215056² = 2206479890166272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33215056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33215051) 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 3 ways as a sum of consecutive naturals, for example, 148170 + ... + 148393.

Almost surely, 2^33215056 is an apocalyptic number.

It is an amenable number.

33215056 is an abundant number, since it is smaller than the sum of its proper divisors (40332816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33215056 is a wasteful number, since it uses less digits than its factorization.

33215056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296578 (or 296572 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 33215056 is about 5763.2504717390. The cubic root of 33215056 is about 321.4486920550.

Adding to 33215056 its reverse (65051233), we get a palindrome (98266289).

The spelling of 33215056 in words is "thirty-three million, two hundred fifteen thousand, fifty-six".