433221055 has 24 divisors (see below), whose sum is σ = 536842080. Its totient is φ = 335543040.

The previous prime is 433221037. The next prime is 433221059. The reversal of 433221055 is 550122334.

It is not a de Polignac number, because 433221055 - 2²⁵ = 399666623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (433221059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1891681 + ... + 1891909.

It is an arithmetic number, because the mean of its divisors is an integer number (22368420).

Almost surely, 2^433221055 is an apocalyptic number.

433221055 is a deficient number, since it is larger than the sum of its proper divisors (103621025).

433221055 is an equidigital number, since it uses as much as digits as its factorization.

433221055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 433221055 is about 20813.9629816140. The cubic root of 433221055 is about 756.6641973910.

Adding to 433221055 its reverse (550122334), we get a palindrome (983343389).

The spelling of 433221055 in words is "four hundred thirty-three million, two hundred twenty-one thousand, fifty-five".