20268375 has 16 divisors (see below), whose sum is σ = 33727200. Its totient is φ = 10809600.

The previous prime is 20268373. The next prime is 20268379. The reversal of 20268375 is 57386202.

It is not a de Polignac number, because 20268375 - 2¹ = 20268373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20268373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26650 + ... + 27399.

It is an arithmetic number, because the mean of its divisors is an integer number (2107950).

Almost surely, 2^20268375 is an apocalyptic number.

20268375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20268375 is a deficient number, since it is larger than the sum of its proper divisors (13458825).

20268375 is an equidigital number, since it uses as much as digits as its factorization.

20268375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54067 (or 54057 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 20268375 is about 4502.0412037208. The cubic root of 20268375 is about 272.6505074351.

It can be divided in two parts, 2026 and 8375, that added together give a palindrome (10401).

The spelling of 20268375 in words is "twenty million, two hundred sixty-eight thousand, three hundred seventy-five".