20255023 has 4 divisors (see below), whose sum is σ = 20286328. Its totient is φ = 20223720.

The previous prime is 20255017. The next prime is 20255057. The reversal of 20255023 is 32055202.

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 20255023 - 2⁵ = 20254991 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 (20255003) 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, 14661 + ... + 15982.

It is an arithmetic number, because the mean of its divisors is an integer number (5071582).

Almost surely, 2^20255023 is an apocalyptic number.

20255023 is a deficient number, since it is larger than the sum of its proper divisors (31305).

20255023 is an equidigital number, since it uses as much as digits as its factorization.

20255023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31304.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20255023 is about 4500.5580765056. The cubic root of 20255023 is about 272.5906238437.

It can be divided in two parts, 202 and 55023, that added together give a square (55225 = 235²).

The spelling of 20255023 in words is "twenty million, two hundred fifty-five thousand, twenty-three".