33809057 has 8 divisors (see below), whose sum is σ = 35337984. Its totient is φ = 32285088.

The previous prime is 33809047. The next prime is 33809063. The reversal of 33809057 is 75090833.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33809057 is a prime.

It is a super-2 number, since 2×33809057² = 2286104670458498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33809047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23048 + ... + 24470.

It is an arithmetic number, because the mean of its divisors is an integer number (4417248).

Almost surely, 2^33809057 is an apocalyptic number.

It is an amenable number.

33809057 is a deficient number, since it is larger than the sum of its proper divisors (1528927).

33809057 is a wasteful number, since it uses less digits than its factorization.

33809057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 33809057 is about 5814.5556150062. Note that the first 3 decimals coincide. The cubic root of 33809057 is about 323.3535891468.

The spelling of 33809057 in words is "thirty-three million, eight hundred nine thousand, fifty-seven".