20411063 has 4 divisors (see below), whose sum is σ = 20548200. Its totient is φ = 20273928.

The previous prime is 20411057. The next prime is 20411089. The reversal of 20411063 is 36011402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20411063 - 2²⁰ = 19362487 is a prime.

It is a super-2 number, since 2×20411063² = 833222985579938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411003) 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, 68345 + ... + 68642.

It is an arithmetic number, because the mean of its divisors is an integer number (5137050).

Almost surely, 2^20411063 is an apocalyptic number.

20411063 is a deficient number, since it is larger than the sum of its proper divisors (137137).

20411063 is a wasteful number, since it uses less digits than its factorization.

20411063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137136.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20411063 is about 4517.8604449452. The cubic root of 20411063 is about 273.2888256237.

Adding to 20411063 its reverse (36011402), we get a palindrome (56422465).

The spelling of 20411063 in words is "twenty million, four hundred eleven thousand, sixty-three".