20055023 has 4 divisors (see below), whose sum is σ = 20182920. Its totient is φ = 19927128.

The previous prime is 20055017. The next prime is 20055083. The reversal of 20055023 is 32055002.

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 20055023 - 2⁸ = 20054767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20054992 and 20055010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63713 + ... + 64026.

It is an arithmetic number, because the mean of its divisors is an integer number (5045730).

Almost surely, 2^20055023 is an apocalyptic number.

20055023 is a deficient number, since it is larger than the sum of its proper divisors (127897).

20055023 is a wasteful number, since it uses less digits than its factorization.

20055023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127896.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 20055023 is about 4478.2834881235. The cubic root of 20055023 is about 271.6904593980.

The spelling of 20055023 in words is "twenty million, fifty-five thousand, twenty-three".