33042257 has 2 divisors, whose sum is σ = 33042258. Its totient is φ = 33042256.

The previous prime is 33042241. The next prime is 33042263. The reversal of 33042257 is 75224033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22648081 + 10394176 = 4759^2 + 3224^2 .

It is a cyclic number.

It is not a de Polignac number, because 33042257 - 2⁴ = 33042241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33042227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16521128 + 16521129.

It is an arithmetic number, because the mean of its divisors is an integer number (16521129).

Almost surely, 2^33042257 is an apocalyptic number.

It is an amenable number.

33042257 is a deficient number, since it is larger than the sum of its proper divisors (1).

33042257 is an equidigital number, since it uses as much as digits as its factorization.

33042257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 33042257 is about 5748.2394696115. The cubic root of 33042257 is about 320.8902844797.

The spelling of 33042257 in words is "thirty-three million, forty-two thousand, two hundred fifty-seven".