25676 has 18 divisors (see below), whose sum is σ = 52668. Its totient is φ = 10920.

The previous prime is 25673. The next prime is 25679. The reversal of 25676 is 67652.

It is an interprime number because it is at equal distance from previous prime (25673) and next prime (25679).

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

Its product of digits (2520) is a multiple of the sum of its prime divisors (140).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (25673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131 + ... + 261.

It is an arithmetic number, because the mean of its divisors is an integer number (2926).

2²⁵⁶⁷⁶ is an apocalyptic number.

25676 is the 131-st pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26334).

25676 is an abundant number, since it is smaller than the sum of its proper divisors (26992).

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

25676 is a wasteful number, since it uses less digits than its factorization.

25676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 140 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 25676 is about 160.2373239916. The cubic root of 25676 is about 29.5013884245.

It can be divided in two parts, 25 and 676, that multiplied together give a square (16900 = 130²).

The spelling of 25676 in words is "twenty-five thousand, six hundred seventy-six".