25680563 has 8 divisors (see below), whose sum is σ = 26063856. Its totient is φ = 25300000.

The previous prime is 25680547. The next prime is 25680583. The reversal of 25680563 is 36508652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25680563 - 2⁴ = 25680547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25680583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24845 + ... + 25857.

It is an arithmetic number, because the mean of its divisors is an integer number (3257982).

Almost surely, 2^25680563 is an apocalyptic number.

25680563 is a deficient number, since it is larger than the sum of its proper divisors (383293).

25680563 is a wasteful number, since it uses less digits than its factorization.

25680563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 25680563 is about 5067.5993330176. The cubic root of 25680563 is about 295.0313593016.

The spelling of 25680563 in words is "twenty-five million, six hundred eighty thousand, five hundred sixty-three".