33253133 has 2 divisors, whose sum is σ = 33253134. Its totient is φ = 33253132.

The previous prime is 33253127. The next prime is 33253151. The reversal of 33253133 is 33135233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26081449 + 7171684 = 5107^2 + 2678^2 .

It is an emirp because it is prime and its reverse (33135233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33253133 - 2²² = 29058829 is a prime.

It is a super-2 number, since 2×33253133² = 2211541708631378, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33253099 and 33253108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33253163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16626566 + 16626567.

It is an arithmetic number, because the mean of its divisors is an integer number (16626567).

Almost surely, 2^33253133 is an apocalyptic number.

It is an amenable number.

33253133 is a deficient number, since it is larger than the sum of its proper divisors (1).

33253133 is an equidigital number, since it uses as much as digits as its factorization.

33253133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 23.

The square root of 33253133 is about 5766.5529564897. The cubic root of 33253133 is about 321.5714790192.

Adding to 33253133 its reverse (33135233), we get a palindrome (66388366).

The spelling of 33253133 in words is "thirty-three million, two hundred fifty-three thousand, one hundred thirty-three".