20000063 has 2 divisors, whose sum is σ = 20000064. Its totient is φ = 20000062.

The previous prime is 20000059. The next prime is 20000069. The reversal of 20000063 is 36000002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000063 - 2² = 20000059 is a prime.

20000063 is a modest number, since divided by 63 gives 20 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 19999999 and 20000053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000031 + 10000032.

It is an arithmetic number, because the mean of its divisors is an integer number (10000032).

Almost surely, 2^20000063 is an apocalyptic number.

20000063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000063 is an equidigital number, since it uses as much as digits as its factorization.

20000063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20000063 is about 4472.1429986082. The cubic root of 20000063 is about 271.4420466730.

Adding to 20000063 its reverse (36000002), we get a palindrome (56000065).

The spelling of 20000063 in words is "twenty million, sixty-three", and thus it is an aban number and an uban number.