25698552056 has 16 divisors (see below), whose sum is σ = 48205058040. Its totient is φ = 12843869920.

The previous prime is 25698552053. The next prime is 25698552059. The reversal of 25698552056 is 65025589652.

It is an interprime number because it is at equal distance from previous prime (25698552053) and next prime (25698552059).

It is a junction number, because it is equal to n+sod(n) for n = 25698551989 and 25698552007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25698552053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655526 + ... + 693621.

Almost surely, 2^25698552056 is an apocalyptic number.

It is an amenable number.

25698552056 is a deficient number, since it is larger than the sum of its proper divisors (22506505984).

25698552056 is a wasteful number, since it uses less digits than its factorization.

25698552056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351534 (or 1351530 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 53.

The spelling of 25698552056 in words is "twenty-five billion, six hundred ninety-eight million, five hundred fifty-two thousand, fifty-six".