20170063 has 2 divisors, whose sum is σ = 20170064. Its totient is φ = 20170062.

The previous prime is 20170061. The next prime is 20170081. The reversal of 20170063 is 36007102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20170063 - 2¹ = 20170061 is a prime.

Together with 20170061, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20170063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20170061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10085031 + 10085032.

It is an arithmetic number, because the mean of its divisors is an integer number (10085032).

Almost surely, 2^20170063 is an apocalyptic number.

20170063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20170063 is an equidigital number, since it uses as much as digits as its factorization.

20170063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20170063 is about 4491.1093284399. The cubic root of 20170063 is about 272.2089612187.

Adding to 20170063 its reverse (36007102), we get a palindrome (56177165).

The spelling of 20170063 in words is "twenty million, one hundred seventy thousand, sixty-three".