33528081 has 16 divisors (see below), whose sum is σ = 46323200. Its totient is φ = 21548160.

The previous prime is 33528067. The next prime is 33528091. The reversal of 33528081 is 18082533.

It is a happy number.

It is not a de Polignac number, because 33528081 - 2⁵ = 33528049 is a prime.

It is a super-2 number, since 2×33528081² = 2248264431085122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33528041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31941 + ... + 32973.

It is an arithmetic number, because the mean of its divisors is an integer number (2895200).

Almost surely, 2^33528081 is an apocalyptic number.

33528081 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33528081 is a deficient number, since it is larger than the sum of its proper divisors (12795119).

33528081 is a wasteful number, since it uses less digits than its factorization.

33528081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 33528081 is about 5790.3437721780. The cubic root of 33528081 is about 322.4553342384.

The spelling of 33528081 in words is "thirty-three million, five hundred twenty-eight thousand, eighty-one".