55887433056 has 768 divisors, whose sum is σ = 210257510400. Its totient is φ = 14046068736.

The previous prime is 55887433033. The next prime is 55887433073. The reversal of 55887433056 is 65033478855.

55887433056 is a `hidden beast` number, since 5 + 588 + 7 + 4 + 3 + 3 + 0 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 55887432993 and 55887433011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 289572096 + ... + 289572288.

It is an arithmetic number, because the mean of its divisors is an integer number (273772800).

Almost surely, 2^55887433056 is an apocalyptic number.

55887433056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55887433056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105128755200).

55887433056 is an abundant number, since it is smaller than the sum of its proper divisors (154370077344).

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

55887433056 is a wasteful number, since it uses less digits than its factorization.

55887433056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 55887433056 in words is "fifty-five billion, eight hundred eighty-seven million, four hundred thirty-three thousand, fifty-six".