20654063 has 2 divisors, whose sum is σ = 20654064. Its totient is φ = 20654062.

The previous prime is 20654033. The next prime is 20654077. The reversal of 20654063 is 36045602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20654063 - 2⁶ = 20653999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20654033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10327031 + 10327032.

It is an arithmetic number, because the mean of its divisors is an integer number (10327032).

Almost surely, 2^20654063 is an apocalyptic number.

20654063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20654063 is an equidigital number, since it uses as much as digits as its factorization.

20654063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 20654063 is about 4544.6741357329. The cubic root of 20654063 is about 274.3690792322.

Adding to 20654063 its reverse (36045602), we get a palindrome (56699665).

The spelling of 20654063 in words is "twenty million, six hundred fifty-four thousand, sixty-three".