25612 has 12 divisors (see below), whose sum is σ = 47320.
Its totient is φ = 12096.
The previous prime is 25609. The next prime is 25621. The reversal of 25612 is 21652.
It is a happy number.
It is an alternating number because its digits alternate between even and odd.
It is a plaindrome in base 7.
It is a nialpdrome in base 13.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93 + ... + 244.
225612 is an apocalyptic number.
It is an amenable number.
25612 is a deficient number, since it is larger than the sum of its proper divisors (21708).
25612 is a wasteful number, since it uses less digits than its factorization.
25612 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 360 (or 358 counting only the distinct ones).
The product of its digits is 120, while the sum is 16.
The square root of 25612 is about 160.0374956065.
The cubic root of 25612 is about 29.4768563091.
The spelling of 25612 in words is "twenty-five thousand, six hundred twelve".