25700 has 18 divisors (see below), whose sum is σ = 55986. Its totient is φ = 10240.

The previous prime is 25693. The next prime is 25703. The reversal of 25700 is 752.

25700 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 3 ways, for example, as 7744 + 17956 = 88^2 + 134^2 .

25700 is an undulating number in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25703) 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, 29 + ... + 228.

2²⁵⁷⁰⁰ is an apocalyptic number.

25700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25700 is an abundant number, since it is smaller than the sum of its proper divisors (30286).

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

25700 is a wasteful number, since it uses less digits than its factorization.

25700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 25700 is about 160.3121954188. The cubic root of 25700 is about 29.5105774575.

The spelling of 25700 in words is "twenty-five thousand, seven hundred".