20027265 has 16 divisors (see below), whose sum is σ = 32299008. Its totient is φ = 10596096.

The previous prime is 20027263. The next prime is 20027291. The reversal of 20027265 is 56272002.

It is not a de Polignac number, because 20027265 - 2¹ = 20027263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20027261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3352 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (2018688).

Almost surely, 2^20027265 is an apocalyptic number.

It is an amenable number.

20027265 is a deficient number, since it is larger than the sum of its proper divisors (12271743).

20027265 is a wasteful number, since it uses less digits than its factorization.

20027265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20027265 is about 4475.1832364720. The cubic root of 20027265 is about 271.5650533112.

Adding to 20027265 its reverse (56272002), we get a palindrome (76299267).

The spelling of 20027265 in words is "twenty million, twenty-seven thousand, two hundred sixty-five".