55000555056 has 240 divisors, whose sum is σ = 173164586400. Its totient is φ = 16209027072.

The previous prime is 55000555031. The next prime is 55000555081. The reversal of 55000555056 is 65055500055.

55000555056 is a `hidden beast` number, since 5 + 50 + 0 + 0 + 5 + 550 + 56 = 666.

55000555056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55000555031) and next prime (55000555081).

It is a super-2 number, since 2×55000555056² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55000555056.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2616235 + ... + 2637173.

It is an arithmetic number, because the mean of its divisors is an integer number (721519110).

Almost surely, 2^55000555056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55000555056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86582293200).

55000555056 is an abundant number, since it is smaller than the sum of its proper divisors (118164031344).

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

55000555056 is a wasteful number, since it uses less digits than its factorization.

55000555056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21036 (or 21027 counting only the distinct ones).

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

The spelling of 55000555056 in words is "fifty-five billion, five hundred fifty-five thousand, fifty-six".