25707056810056 has 8 divisors (see below), whose sum is σ = 48200731518870. Its totient is φ = 12853528405024.

The previous prime is 25707056810027. The next prime is 25707056810087. The reversal of 25707056810056 is 65001865070752.

It can be written as a sum of positive squares in only one way, i.e., 15598281685156 + 10108775124900 = 3949466^2 + 3179430^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 25707056809985 and 25707056810012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606691050621 + ... + 1606691050636.

Almost surely, 2^{25707056810056} is an apocalyptic number.

It is an amenable number.

25707056810056 is a deficient number, since it is larger than the sum of its proper divisors (22493674708814).

25707056810056 is a wasteful number, since it uses less digits than its factorization.

25707056810056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213382101263 (or 3213382101259 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 25707056810056 in words is "twenty-five trillion, seven hundred seven billion, fifty-six million, eight hundred ten thousand, fifty-six".