20206063 has 4 divisors (see below), whose sum is σ = 21269560. Its totient is φ = 19142568.

The previous prime is 20206049. The next prime is 20206097. The reversal of 20206063 is 36060202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36060202 = 2 ⋅18030101.

It is a cyclic number.

It is not a de Polignac number, because 20206063 - 2⁹ = 20205551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1063477 = 20206063 / (2 + 0 + 2 + 0 + 6 + 0 + 6 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20206063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20206763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531720 + ... + 531757.

It is an arithmetic number, because the mean of its divisors is an integer number (5317390).

Almost surely, 2^20206063 is an apocalyptic number.

20206063 is a deficient number, since it is larger than the sum of its proper divisors (1063497).

20206063 is a wasteful number, since it uses less digits than its factorization.

20206063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063496.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20206063 is about 4495.1154601412. The cubic root of 20206063 is about 272.3708132704.

Adding to 20206063 its reverse (36060202), we get a palindrome (56266265).

The spelling of 20206063 in words is "twenty million, two hundred six thousand, sixty-three".