33025881 has 32 divisors (see below), whose sum is σ = 52584448. Its totient is φ = 18040320.

The previous prime is 33025859. The next prime is 33025891. The reversal of 33025881 is 18852033.

It is a happy number.

It is not a de Polignac number, because 33025881 - 2¹⁰ = 33024857 is a prime.

It is a super-2 number, since 2×33025881² = 2181417631652322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33025831) 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 31 ways as a sum of consecutive naturals, for example, 62886 + ... + 63408.

It is an arithmetic number, because the mean of its divisors is an integer number (1643264).

Almost surely, 2^33025881 is an apocalyptic number.

33025881 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33025881 is a deficient number, since it is larger than the sum of its proper divisors (19558567).

33025881 is a wasteful number, since it uses less digits than its factorization.

33025881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

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

The square root of 33025881 is about 5746.8148569447. The cubic root of 33025881 is about 320.8372638112.

The spelling of 33025881 in words is "thirty-three million, twenty-five thousand, eight hundred eighty-one".