20950063 has 2 divisors, whose sum is σ = 20950064. Its totient is φ = 20950062.

The previous prime is 20950049. The next prime is 20950081. The reversal of 20950063 is 36005902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20950063 - 2⁵ = 20950031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20950463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10475031 + 10475032.

It is an arithmetic number, because the mean of its divisors is an integer number (10475032).

Almost surely, 2^20950063 is an apocalyptic number.

20950063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20950063 is an equidigital number, since it uses as much as digits as its factorization.

20950063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 20950063 is about 4577.1238785945. The cubic root of 20950063 is about 275.6735577230.

Adding to 20950063 its reverse (36005902), we get a palindrome (56955965).

The spelling of 20950063 in words is "twenty million, nine hundred fifty thousand, sixty-three".