25266680 has 16 divisors (see below), whose sum is σ = 56850120. Its totient is φ = 10106656.

The previous prime is 25266613. The next prime is 25266707. The reversal of 25266680 is 8666252.

It is a self number, because there is not a number n which added to its sum of digits gives 25266680.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 315794 + ... + 315873.

Almost surely, 2^25266680 is an apocalyptic number.

25266680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25266680 is an abundant number, since it is smaller than the sum of its proper divisors (31583440).

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

25266680 is a wasteful number, since it uses less digits than its factorization.

25266680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631678 (or 631674 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 25266680 is about 5026.5972585836. The cubic root of 25266680 is about 293.4378014036.

The spelling of 25266680 in words is "twenty-five million, two hundred sixty-six thousand, six hundred eighty".