33056220 has 24 divisors (see below), whose sum is σ = 92557584. Its totient is φ = 8814976.

The previous prime is 33056213. The next prime is 33056227. The reversal of 33056220 is 2265033.

It is an interprime number because it is at equal distance from previous prime (33056213) and next prime (33056227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33056227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275409 + ... + 275528.

It is an arithmetic number, because the mean of its divisors is an integer number (3856566).

Almost surely, 2^33056220 is an apocalyptic number.

33056220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33056220 is an abundant number, since it is smaller than the sum of its proper divisors (59501364).

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

33056220 is a wasteful number, since it uses less digits than its factorization.

33056220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550949 (or 550947 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 33056220 is about 5749.4538871096. The cubic root of 33056220 is about 320.9354787295.

The spelling of 33056220 in words is "thirty-three million, fifty-six thousand, two hundred twenty".