20312675 has 12 divisors (see below), whose sum is σ = 25272936. Its totient is φ = 16195200.

The previous prime is 20312639. The next prime is 20312681. The reversal of 20312675 is 57621302.

It is not a de Polignac number, because 20312675 - 2⁸ = 20312419 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7220 + ... + 9630.

It is an arithmetic number, because the mean of its divisors is an integer number (2106078).

Almost surely, 2^20312675 is an apocalyptic number.

20312675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20312675 is a deficient number, since it is larger than the sum of its proper divisors (4960261).

20312675 is a wasteful number, since it uses less digits than its factorization.

20312675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 20312675 is about 4506.9585087950. The cubic root of 20312675 is about 272.8490043271.

Adding to 20312675 its reverse (57621302), we get a palindrome (77933977).

The spelling of 20312675 in words is "twenty million, three hundred twelve thousand, six hundred seventy-five".