33000055 has 32 divisors (see below), whose sum is σ = 47485440. Its totient is φ = 21732480.

The previous prime is 33000031. The next prime is 33000059. The reversal of 33000055 is 55000033.

It is a happy number.

It is not a de Polignac number, because 33000055 - 2⁷ = 32999927 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33000059) 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 31 ways as a sum of consecutive naturals, for example, 23349 + ... + 24721.

It is an arithmetic number, because the mean of its divisors is an integer number (1483920).

Almost surely, 2^33000055 is an apocalyptic number.

33000055 is a deficient number, since it is larger than the sum of its proper divisors (14485385).

33000055 is a wasteful number, since it uses less digits than its factorization.

33000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its (nonzero) digits is 225, while the sum is 16.

The square root of 33000055 is about 5744.5674336716. The cubic root of 33000055 is about 320.7536111958.

Adding to 33000055 its reverse (55000033), we get a palindrome (88000088).

The spelling of 33000055 in words is "thirty-three million, fifty-five", and thus it is an aban number and an uban number.