25682500 has 30 divisors (see below), whose sum is σ = 56167958. Its totient is φ = 10272000.

The previous prime is 25682491. The next prime is 25682519. The reversal of 25682500 is 528652.

It can be written as a sum of positive squares in 5 ways, for example, as 13793796 + 11888704 = 3714^2 + 3448^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2637 + ... + 7636.

Almost surely, 2^25682500 is an apocalyptic number.

25682500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25682500 is an abundant number, since it is smaller than the sum of its proper divisors (30485458).

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

25682500 is a wasteful number, since it uses less digits than its factorization.

25682500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10297 (or 10280 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 25682500 is about 5067.7904455492. The cubic root of 25682500 is about 295.0387768619.

The spelling of 25682500 in words is "twenty-five million, six hundred eighty-two thousand, five hundred".