25580255056 has 20 divisors (see below), whose sum is σ = 49835571604. Its totient is φ = 12719462400.

The previous prime is 25580255039. The next prime is 25580255111. The reversal of 25580255056 is 65055208552.

It can be written as a sum of positive squares in 2 ways, for example, as 4298113600 + 21282141456 = 65560^2 + 145884^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4413585 + ... + 4419376.

Almost surely, 2^25580255056 is an apocalyptic number.

It is an amenable number.

25580255056 is a deficient number, since it is larger than the sum of its proper divisors (24255316548).

25580255056 is a wasteful number, since it uses less digits than its factorization.

25580255056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8833150 (or 8833144 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 25580255056 in words is "twenty-five billion, five hundred eighty million, two hundred fifty-five thousand, fifty-six".