25678680 has 32 divisors (see below), whose sum is σ = 77036400. Its totient is φ = 6847616.

The previous prime is 25678663. The next prime is 25678691. The reversal of 25678680 is 8687652.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 106875 + ... + 107114.

Almost surely, 2^25678680 is an apocalyptic number.

25678680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25678680 is an abundant number, since it is smaller than the sum of its proper divisors (51357720).

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

25678680 is a wasteful number, since it uses less digits than its factorization.

25678680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214003 (or 213999 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 25678680 is about 5067.4135414430. The cubic root of 25678680 is about 295.0241481716.

The spelling of 25678680 in words is "twenty-five million, six hundred seventy-eight thousand, six hundred eighty".