25118 has 8 divisors (see below), whose sum is σ = 39720. Its totient is φ = 11880.

The previous prime is 25117. The next prime is 25121. The reversal of 25118 is 81152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 25096 and 25105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293 + ... + 368.

It is an arithmetic number, because the mean of its divisors is an integer number (4965).

2²⁵¹¹⁸ is an apocalyptic number.

25118 is a deficient number, since it is larger than the sum of its proper divisors (14602).

25118 is a wasteful number, since it uses less digits than its factorization.

25118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682.

The product of its digits is 80, while the sum is 17.

The square root of 25118 is about 158.4865924929. The cubic root of 25118 is about 29.2861097366.

The spelling of 25118 in words is "twenty-five thousand, one hundred eighteen".