20875033 has 2 divisors, whose sum is σ = 20875034. Its totient is φ = 20875032.

The previous prime is 20875013. The next prime is 20875051. The reversal of 20875033 is 33057802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19820304 + 1054729 = 4452^2 + 1027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20875033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20874992 and 20875010.

It is not a weakly prime, because it can be changed into another prime (20875013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10437516 + 10437517.

It is an arithmetic number, because the mean of its divisors is an integer number (10437517).

Almost surely, 2^20875033 is an apocalyptic number.

It is an amenable number.

20875033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20875033 is an equidigital number, since it uses as much as digits as its factorization.

20875033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20875033 is about 4568.9203319822. The cubic root of 20875033 is about 275.3440674107.

The spelling of 20875033 in words is "twenty million, eight hundred seventy-five thousand, thirty-three".