33055985 has 8 divisors (see below), whose sum is σ = 40739496. Its totient is φ = 25729920.

The previous prime is 33055937. The next prime is 33055999. The reversal of 33055985 is 58955033.

It can be written as a sum of positive squares in 4 ways, for example, as 15808576 + 17247409 = 3976^2 + 4153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33055985 - 2¹⁶ = 32990449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89156 + ... + 89525.

It is an arithmetic number, because the mean of its divisors is an integer number (5092437).

Almost surely, 2^33055985 is an apocalyptic number.

It is an amenable number.

33055985 is a deficient number, since it is larger than the sum of its proper divisors (7683511).

33055985 is a wasteful number, since it uses less digits than its factorization.

33055985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178723.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 33055985 is about 5749.4334503497. The cubic root of 33055985 is about 320.9347182068.

The spelling of 33055985 in words is "thirty-three million, fifty-five thousand, nine hundred eighty-five".