56000555550 has 96 divisors (see below), whose sum is σ = 154527609600. Its totient is φ = 14912678880.

The previous prime is 56000555519. The next prime is 56000555551. The reversal of 56000555550 is 5555500065.

56000555550 is a `hidden beast` number, since 56 + 0 + 0 + 0 + 5 + 55 + 550 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56000555551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 952921 + ... + 1009979.

It is an arithmetic number, because the mean of its divisors is an integer number (1609662600).

Almost surely, 2^56000555550 is an apocalyptic number.

56000555550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56000555550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77263804800).

56000555550 is an abundant number, since it is smaller than the sum of its proper divisors (98527054050).

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

56000555550 is a wasteful number, since it uses less digits than its factorization.

56000555550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57807 (or 57796 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The spelling of 56000555550 in words is "fifty-six billion, five hundred fifty-five thousand, five hundred fifty".