25600563 has 8 divisors (see below), whose sum is σ = 37926800. Its totient is φ = 17067024.

The previous prime is 25600529. The next prime is 25600567. The reversal of 25600563 is 36500652.

25600563 is a `hidden beast` number, since 2 + 5 + 600 + 56 + 3 = 666.

It is not a de Polignac number, because 25600563 - 2⁸ = 25600307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 948169 = 25600563 / (2 + 5 + 6 + 0 + 0 + 5 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25600567) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 474058 + ... + 474111.

It is an arithmetic number, because the mean of its divisors is an integer number (4740850).

Almost surely, 2^25600563 is an apocalyptic number.

25600563 is a deficient number, since it is larger than the sum of its proper divisors (12326237).

25600563 is an equidigital number, since it uses as much as digits as its factorization.

25600563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948178 (or 948172 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 25600563 is about 5059.6998922861. The cubic root of 25600563 is about 294.7246804064.

Adding to 25600563 its sum of digits (27), we get a triangular number (25600590 = T₇₁₅₅).

The spelling of 25600563 in words is "twenty-five million, six hundred thousand, five hundred sixty-three".