25628587563 has 16 divisors (see below), whose sum is σ = 34563361536. Its totient is φ = 16890762720.

The previous prime is 25628587531. The next prime is 25628587577. The reversal of 25628587563 is 36578582652.

It is not a de Polignac number, because 25628587563 - 2⁵ = 25628587531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25628587163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20620 + ... + 227337.

It is an arithmetic number, because the mean of its divisors is an integer number (2160210096).

Almost surely, 2^25628587563 is an apocalyptic number.

25628587563 is a deficient number, since it is larger than the sum of its proper divisors (8934773973).

25628587563 is a wasteful number, since it uses less digits than its factorization.

25628587563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248354.

The product of its digits is 24192000, while the sum is 57.

The spelling of 25628587563 in words is "twenty-five billion, six hundred twenty-eight million, five hundred eighty-seven thousand, five hundred sixty-three".