20054663 has 4 divisors (see below), whose sum is σ = 20065848. Its totient is φ = 20043480.

The previous prime is 20054651. The next prime is 20054669. The reversal of 20054663 is 36645002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20054663 - 2⁴ = 20054647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054669) 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, 2228 + ... + 6713.

It is an arithmetic number, because the mean of its divisors is an integer number (5016462).

Almost surely, 2^20054663 is an apocalyptic number.

20054663 is a deficient number, since it is larger than the sum of its proper divisors (11185).

20054663 is an equidigital number, since it uses as much as digits as its factorization.

20054663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11184.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 20054663 is about 4478.2432939714. The cubic root of 20054663 is about 271.6888337180.

Adding to 20054663 its reverse (36645002), we get a palindrome (56699665).

The spelling of 20054663 in words is "twenty million, fifty-four thousand, six hundred sixty-three".