25810135287056 has 20 divisors (see below), whose sum is σ = 50007235141632. Its totient is φ = 12905042347296.

The previous prime is 25810135286989. The next prime is 25810135287067. The reversal of 25810135287056 is 65078253101852.

It is a super-4 number, since 4×25810135287056⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 25810135286989 and 25810135287007.

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, 8970521 + ... + 11493063.

Almost surely, 2^{25810135287056} is an apocalyptic number.

It is an amenable number.

25810135287056 is a deficient number, since it is larger than the sum of its proper divisors (24197099854576).

25810135287056 is a wasteful number, since it uses less digits than its factorization.

25810135287056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162038 (or 3162032 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 53.

The spelling of 25810135287056 in words is "twenty-five trillion, eight hundred ten billion, one hundred thirty-five million, two hundred eighty-seven thousand, fifty-six".