25487 has 8 divisors (see below), whose sum is σ = 31872. Its totient is φ = 19800.

The previous prime is 25471. The next prime is 25523. The reversal of 25487 is 78452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25487 - 2⁴ = 25471 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25487.

It is not an unprimeable number, because it can be changed into a prime (25447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89 + ... + 242.

It is an arithmetic number, because the mean of its divisors is an integer number (3984).

2²⁵⁴⁸⁷ is an apocalyptic number.

25487 is a deficient number, since it is larger than the sum of its proper divisors (6385).

25487 is a wasteful number, since it uses less digits than its factorization.

25487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

The product of its digits is 2240, while the sum is 26.

The square root of 25487 is about 159.6464844586. The cubic root of 25487 is about 29.4288239075.

It can be divided in two parts, 25 and 487, that added together give a 9-th power (512 = 2⁹).

The spelling of 25487 in words is "twenty-five thousand, four hundred eighty-seven".