20023275 has 12 divisors (see below), whose sum is σ = 33105272. Its totient is φ = 10679040.

The previous prime is 20023273. The next prime is 20023279. The reversal of 20023275 is 57232002.

It is not a de Polignac number, because 20023275 - 2¹ = 20023273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133414 + ... + 133563.

Almost surely, 2^20023275 is an apocalyptic number.

20023275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20023275 is a deficient number, since it is larger than the sum of its proper divisors (13081997).

20023275 is a wasteful number, since it uses less digits than its factorization.

20023275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266990 (or 266985 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20023275 is about 4474.7374224640. The cubic root of 20023275 is about 271.5470176229.

Adding to 20023275 its reverse (57232002), we get a palindrome (77255277).

The spelling of 20023275 in words is "twenty million, twenty-three thousand, two hundred seventy-five".