25512 has 16 divisors (see below), whose sum is σ = 63840. Its totient is φ = 8496.

The previous prime is 25471. The next prime is 25523. The reversal of 25512 is 21552.

It is a hoax number, since the sum of its digits (15) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25491 and 25500.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508 + ... + 555.

It is an arithmetic number, because the mean of its divisors is an integer number (3990).

2²⁵⁵¹² is an apocalyptic number.

It is an amenable number.

25512 is an abundant number, since it is smaller than the sum of its proper divisors (38328).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31920).

25512 is a wasteful number, since it uses less digits than its factorization.

25512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1068 counting only the distinct ones).

The product of its digits is 100, while the sum is 15.

The square root of 25512 is about 159.7247632648. The cubic root of 25512 is about 29.4384429312.

The spelling of 25512 in words is "twenty-five thousand, five hundred twelve".