20023055 has 32 divisors (see below), whose sum is σ = 28170240. Its totient is φ = 13530240.

The previous prime is 20023049. The next prime is 20023057. The reversal of 20023055 is 55032002.

It is not a de Polignac number, because 20023055 - 2⁴ = 20023039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38024 + ... + 38546.

It is an arithmetic number, because the mean of its divisors is an integer number (880320).

Almost surely, 2^20023055 is an apocalyptic number.

20023055 is a deficient number, since it is larger than the sum of its proper divisors (8147185).

20023055 is a wasteful number, since it uses less digits than its factorization.

20023055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591.

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

The square root of 20023055 is about 4474.7128399485. The cubic root of 20023055 is about 271.5460231042.

Adding to 20023055 its reverse (55032002), we get a palindrome (75055057).

The spelling of 20023055 in words is "twenty million, twenty-three thousand, fifty-five".