20032633 has 2 divisors, whose sum is σ = 20032634. Its totient is φ = 20032632.

The previous prime is 20032627. The next prime is 20032637. The reversal of 20032633 is 33623002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10316944 + 9715689 = 3212^2 + 3117^2 .

It is a cyclic number.

It is not a de Polignac number, because 20032633 - 2⁵ = 20032601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20032633.

It is not a weakly prime, because it can be changed into another prime (20032637) 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, 10016316 + 10016317.

It is an arithmetic number, because the mean of its divisors is an integer number (10016317).

Almost surely, 2^20032633 is an apocalyptic number.

It is an amenable number.

20032633 is a deficient number, since it is larger than the sum of its proper divisors (1).

20032633 is an equidigital number, since it uses as much as digits as its factorization.

20032633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 20032633 is about 4475.7829482673. The cubic root of 20032633 is about 271.5893140874.

Adding to 20032633 its reverse (33623002), we get a palindrome (53655635).

The spelling of 20032633 in words is "twenty million, thirty-two thousand, six hundred thirty-three".