33055780 has 12 divisors (see below), whose sum is σ = 69417180. Its totient is φ = 13222304.

The previous prime is 33055747. The next prime is 33055783. The reversal of 33055780 is 8755033.

It can be written as a sum of positive squares in 2 ways, for example, as 20268004 + 12787776 = 4502^2 + 3576^2 .

It is not an unprimeable number, because it can be changed into a prime (33055783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826375 + ... + 826414.

It is an arithmetic number, because the mean of its divisors is an integer number (5784765).

Almost surely, 2^33055780 is an apocalyptic number.

It is an amenable number.

33055780 is an abundant number, since it is smaller than the sum of its proper divisors (36361400).

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

33055780 is a wasteful number, since it uses less digits than its factorization.

33055780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652798 (or 1652796 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 33055780 is about 5749.4156224785. The cubic root of 33055780 is about 320.9340547692.

The spelling of 33055780 in words is "thirty-three million, fifty-five thousand, seven hundred eighty".