25487860 has 24 divisors (see below), whose sum is σ = 53804520. Its totient is φ = 10141824.

The previous prime is 25487837. The next prime is 25487867. The reversal of 25487860 is 6878452.

It can be written as a sum of positive squares in 4 ways, for example, as 3247204 + 22240656 = 1802^2 + 4716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25487867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706 + ... + 7174.

It is an arithmetic number, because the mean of its divisors is an integer number (2241855).

Almost surely, 2^25487860 is an apocalyptic number.

25487860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25487860 is an abundant number, since it is smaller than the sum of its proper divisors (28316660).

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

25487860 is a wasteful number, since it uses less digits than its factorization.

25487860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6675 (or 6673 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 25487860 is about 5048.5502869636. The cubic root of 25487860 is about 294.2915490631.

The spelling of 25487860 in words is "twenty-five million, four hundred eighty-seven thousand, eight hundred sixty".