25896 has 32 divisors (see below), whose sum is σ = 70560. Its totient is φ = 7872.

The previous prime is 25889. The next prime is 25903. The reversal of 25896 is 69852.

25896 = T₃₁ + T₃₂ + ... + T₅₆.

It is an interprime number because it is at equal distance from previous prime (25889) and next prime (25903).

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

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25896.

It is an unprimeable number.

25896 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271 + ... + 353.

It is an arithmetic number, because the mean of its divisors is an integer number (2205).

25896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35280).

25896 is an abundant number, since it is smaller than the sum of its proper divisors (44664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25896 is a wasteful number, since it uses less digits than its factorization.

25896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 101 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 25896 is about 160.9223415191. The cubic root of 25896 is about 29.5854079525.

Subtracting 25896 from its reverse (69852), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 25896 in words is "twenty-five thousand, eight hundred ninety-six".