55686854054556 has 72 divisors (see below), whose sum is σ = 143345161041264. Its totient is φ = 18223074455040.

The previous prime is 55686854054551. The next prime is 55686854054567. The reversal of 55686854054556 is 65545045868655.

55686854054556 is a `hidden beast` number, since 5 + 5 + 6 + 8 + 68 + 5 + 4 + 0 + 5 + 4 + 556 = 666.

55686854054556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55686854054551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23094621 + ... + 25391636.

It is an arithmetic number, because the mean of its divisors is an integer number (1990905014462).

Almost surely, 2^{55686854054556} is an apocalyptic number.

It is an amenable number.

55686854054556 is an abundant number, since it is smaller than the sum of its proper divisors (87658306986708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55686854054556 is a wasteful number, since it uses less digits than its factorization.

55686854054556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48486851 (or 48486846 counting only the distinct ones).

The product of its (nonzero) digits is 3456000000, while the sum is 72.

The spelling of 55686854054556 in words is "fifty-five trillion, six hundred eighty-six billion, eight hundred fifty-four million, fifty-four thousand, five hundred fifty-six".