25610 has 16 divisors (see below), whose sum is σ = 49896. Its totient is φ = 9408.

The previous prime is 25609. The next prime is 25621. The reversal of 25610 is 1652.

It can be written as a sum of positive squares in 4 ways, for example, as 22801 + 2809 = 151^2 + 53^2 .

It is an alternating number because its digits alternate between even and odd.

25610 is an undulating number in base 14.

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 7 ways as a sum of consecutive naturals, for example, 32 + ... + 228.

2²⁵⁶¹⁰ is an apocalyptic number.

25610 is a deficient number, since it is larger than the sum of its proper divisors (24286).

25610 is a wasteful number, since it uses less digits than its factorization.

25610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 25610 is about 160.0312469488. The cubic root of 25610 is about 29.4760890224.

The spelling of 25610 in words is "twenty-five thousand, six hundred ten".