20630063 has 2 divisors, whose sum is σ = 20630064. Its totient is φ = 20630062.

The previous prime is 20630059. The next prime is 20630069. The reversal of 20630063 is 36003602.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20630063 - 2² = 20630059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20630069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10315031 + 10315032.

It is an arithmetic number, because the mean of its divisors is an integer number (10315032).

Almost surely, 2^20630063 is an apocalyptic number.

20630063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20630063 is an equidigital number, since it uses as much as digits as its factorization.

20630063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 20630063 is about 4542.0329148961. The cubic root of 20630063 is about 274.2627658468.

Adding to 20630063 its reverse (36003602), we get a palindrome (56633665).

The spelling of 20630063 in words is "twenty million, six hundred thirty thousand, sixty-three".