25487568 has 80 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 8282880.

The previous prime is 25487563. The next prime is 25487591. The reversal of 25487568 is 86578452.

25487568 is a `hidden beast` number, since 2 + 5 + 4 + 87 + 568 = 666.

It is a super-2 number, since 2×25487568² = 1299232245109248, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25487563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16993 + ... + 18431.

It is an arithmetic number, because the mean of its divisors is an integer number (937440).

Almost surely, 2^25487568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25487568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37497600).

25487568 is an abundant number, since it is smaller than the sum of its proper divisors (49507632).

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

25487568 is a wasteful number, since it uses less digits than its factorization.

25487568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497 (or 1485 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 25487568 is about 5048.5213676878. The cubic root of 25487568 is about 294.2904252149.

The spelling of 25487568 in words is "twenty-five million, four hundred eighty-seven thousand, five hundred sixty-eight".