20055923 has 2 divisors, whose sum is σ = 20055924. Its totient is φ = 20055922.

The previous prime is 20055913. The next prime is 20055949. The reversal of 20055923 is 32955002.

It is an a-pointer prime, because the next prime (20055949) can be obtained adding 20055923 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20055923 - 2⁶ = 20055859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20055892 and 20055901.

It is not a weakly prime, because it can be changed into another prime (20055913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10027961 + 10027962.

It is an arithmetic number, because the mean of its divisors is an integer number (10027962).

Almost surely, 2^20055923 is an apocalyptic number.

20055923 is a deficient number, since it is larger than the sum of its proper divisors (1).

20055923 is an equidigital number, since it uses as much as digits as its factorization.

20055923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 20055923 is about 4478.3839719256. The cubic root of 20055923 is about 271.6945235129.

The spelling of 20055923 in words is "twenty million, fifty-five thousand, nine hundred twenty-three".