33312085 has 4 divisors (see below), whose sum is σ = 39974508. Its totient is φ = 26649664.

The previous prime is 33312067. The next prime is 33312127. The reversal of 33312085 is 58021333.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4485924 + 28826161 = 2118^2 + 5369^2 .

It is a cyclic number.

It is not a de Polignac number, because 33312085 - 2⁵ = 33312053 is a prime.

It is a super-2 number, since 2×33312085² = 2219390014094450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3331204 + ... + 3331213.

It is an arithmetic number, because the mean of its divisors is an integer number (9993627).

Almost surely, 2^33312085 is an apocalyptic number.

It is an amenable number.

33312085 is a deficient number, since it is larger than the sum of its proper divisors (6662423).

33312085 is an equidigital number, since it uses as much as digits as its factorization.

33312085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6662422.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 33312085 is about 5771.6622389048. The cubic root of 33312085 is about 321.7613968655.

The spelling of 33312085 in words is "thirty-three million, three hundred twelve thousand, eighty-five".