25513612462556 has 24 divisors (see below), whose sum is σ = 46847478691104. Its totient is φ = 12134747211840.

The previous prime is 25513612462543. The next prime is 25513612462589. The reversal of 25513612462556 is 65526421631552.

It is a junction number, because it is equal to n+sod(n) for n = 25513612462498 and 25513612462507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766065875 + ... + 766099178.

It is an arithmetic number, because the mean of its divisors is an integer number (1951978278796).

Almost surely, 2^{25513612462556} is an apocalyptic number.

It is an amenable number.

25513612462556 is a deficient number, since it is larger than the sum of its proper divisors (21333866228548).

25513612462556 is a wasteful number, since it uses less digits than its factorization.

25513612462556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532165261 (or 1532165259 counting only the distinct ones).

The product of its digits is 12960000, while the sum is 53.

The spelling of 25513612462556 in words is "twenty-five trillion, five hundred thirteen billion, six hundred twelve million, four hundred sixty-two thousand, five hundred fifty-six".