33057733 has 4 divisors (see below), whose sum is σ = 33551200. Its totient is φ = 32564268.

The previous prime is 33057727. The next prime is 33057781. The reversal of 33057733 is 33775033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33775033 = 683 ⋅49451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33057733 is a prime.

It is a super-2 number, since 2×33057733² = 2185627422198578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33057695 and 33057704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33057533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246633 + ... + 246766.

It is an arithmetic number, because the mean of its divisors is an integer number (8387800).

Almost surely, 2^33057733 is an apocalyptic number.

It is an amenable number.

33057733 is a deficient number, since it is larger than the sum of its proper divisors (493467).

33057733 is an equidigital number, since it uses as much as digits as its factorization.

33057733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493466.

The product of its (nonzero) digits is 19845, while the sum is 31.

The square root of 33057733 is about 5749.5854633182. The cubic root of 33057733 is about 320.9403751148.

The spelling of 33057733 in words is "thirty-three million, fifty-seven thousand, seven hundred thirty-three".