20095 has 4 divisors (see below), whose sum is σ = 24120. Its totient is φ = 16072.

The previous prime is 20089. The next prime is 20101. The reversal of 20095 is 59002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59002 = 2 ⋅29501.

It is an interprime number because it is at equal distance from previous prime (20089) and next prime (20101).

It is a cyclic number.

It is not a de Polignac number, because 20095 - 2⁵ = 20063 is a prime.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 2005 + ... + 2014.

It is an arithmetic number, because the mean of its divisors is an integer number (6030).

2²⁰⁰⁹⁵ is an apocalyptic number.

20095 is a deficient number, since it is larger than the sum of its proper divisors (4025).

20095 is an equidigital number, since it uses as much as digits as its factorization.

20095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 20095 is about 141.7568340504. The cubic root of 20095 is about 27.1870865749.

Adding to 20095 its reverse (59002), we get a palindrome (79097).

The spelling of 20095 in words is "twenty thousand, ninety-five".