20316875 has 10 divisors (see below), whose sum is σ = 25388748. Its totient is φ = 16253000.

The previous prime is 20316841. The next prime is 20316883. The reversal of 20316875 is 57861302.

It is a happy number.

It is not a de Polignac number, because 20316875 - 2¹² = 20312779 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 15629 + ... + 16878.

Almost surely, 2^20316875 is an apocalyptic number.

20316875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20316875 is a deficient number, since it is larger than the sum of its proper divisors (5071873).

20316875 is an frugal number, since it uses more digits than its factorization.

20316875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32527 (or 32512 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 20316875 is about 4507.4244308696. The cubic root of 20316875 is about 272.8678084621.

The spelling of 20316875 in words is "twenty million, three hundred sixteen thousand, eight hundred seventy-five".