55500716856 has 32 divisors (see below), whose sum is σ = 149425007760. Its totient is φ = 17077143552.

The previous prime is 55500716851. The next prime is 55500716891. The reversal of 55500716856 is 65861700555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500716851) 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 7 ways as a sum of consecutive naturals, for example, 88943145 + ... + 88943768.

Almost surely, 2^55500716856 is an apocalyptic number.

It is an amenable number.

55500716856 is an abundant number, since it is smaller than the sum of its proper divisors (93924290904).

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

55500716856 is a wasteful number, since it uses less digits than its factorization.

55500716856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177886935 (or 177886931 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 48.

The spelling of 55500716856 in words is "fifty-five billion, five hundred million, seven hundred sixteen thousand, eight hundred fifty-six".