33550133 has 4 divisors (see below), whose sum is σ = 33751200. Its totient is φ = 33349068.

The previous prime is 33550117. The next prime is 33550141. The reversal of 33550133 is 33105533.

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: 33105533 = 23 ⋅1439371.

It is a cyclic number.

It is not a de Polignac number, because 33550133 - 2⁴ = 33550117 is a prime.

It is a super-2 number, since 2×33550133² = 2251222848635378, 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 = 33550099 and 33550108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33550633) 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, 100283 + ... + 100616.

It is an arithmetic number, because the mean of its divisors is an integer number (8437800).

Almost surely, 2^33550133 is an apocalyptic number.

It is an amenable number.

33550133 is a deficient number, since it is larger than the sum of its proper divisors (201067).

33550133 is a wasteful number, since it uses less digits than its factorization.

33550133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201066.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 33550133 is about 5792.2476639039. The cubic root of 33550133 is about 322.5260135658.

Adding to 33550133 its reverse (33105533), we get a palindrome (66655666).

The spelling of 33550133 in words is "thirty-three million, five hundred fifty thousand, one hundred thirty-three".