25684563 has 8 divisors (see below), whose sum is σ = 34276608. Its totient is φ = 17107784.

The previous prime is 25684553. The next prime is 25684577. The reversal of 25684563 is 36548652.

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 25684563 - 2⁶ = 25684499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25684553) 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, 970 + ... + 7232.

It is an arithmetic number, because the mean of its divisors is an integer number (4284576).

Almost surely, 2^25684563 is an apocalyptic number.

25684563 is a deficient number, since it is larger than the sum of its proper divisors (8592045).

25684563 is a wasteful number, since it uses less digits than its factorization.

25684563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7633.

The product of its digits is 172800, while the sum is 39.

The square root of 25684563 is about 5067.9939818433. The cubic root of 25684563 is about 295.0466765173.

The spelling of 25684563 in words is "twenty-five million, six hundred eighty-four thousand, five hundred sixty-three".