20560375 has 32 divisors (see below), whose sum is σ = 29502720. Its totient is φ = 14148000.

The previous prime is 20560373. The next prime is 20560381. The reversal of 20560375 is 57306502.

It is not a de Polignac number, because 20560375 - 2¹ = 20560373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20560373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25732 + ... + 26518.

It is an arithmetic number, because the mean of its divisors is an integer number (921960).

Almost surely, 2^20560375 is an apocalyptic number.

20560375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20560375 is a deficient number, since it is larger than the sum of its proper divisors (8942345).

20560375 is a wasteful number, since it uses less digits than its factorization.

20560375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 20560375 is about 4534.3549706656. The cubic root of 20560375 is about 273.9535991542.

Adding to 20560375 its reverse (57306502), we get a palindrome (77866877).

The spelling of 20560375 in words is "twenty million, five hundred sixty thousand, three hundred seventy-five".