25873 has 2 divisors, whose sum is σ = 25874. Its totient is φ = 25872.

The previous prime is 25867. The next prime is 25889. The reversal of 25873 is 37852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21904 + 3969 = 148^2 + 63^2 .

It is a cyclic number.

It is not a de Polignac number, because 25873 - 2⁵ = 25841 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (25073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12936 + 12937.

It is an arithmetic number, because the mean of its divisors is an integer number (12937).

2²⁵⁸⁷³ is an apocalyptic number.

It is an amenable number.

25873 is a deficient number, since it is larger than the sum of its proper divisors (1).

25873 is an equidigital number, since it uses as much as digits as its factorization.

25873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 25873 is about 160.8508626026. The cubic root of 25873 is about 29.5766464200.

It can be divided in two parts, 25 and 873, that added together give a palindrome (898).

The spelling of 25873 in words is "twenty-five thousand, eight hundred seventy-three".