55061326944 has 288 divisors, whose sum is σ = 180424389600. Its totient is φ = 15785902080.

The previous prime is 55061326909. The next prime is 55061326961. The reversal of 55061326944 is 44962316055.

55061326944 is a `hidden beast` number, since 5 + 5 + 0 + 613 + 26 + 9 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a self number, because there is not a number n which added to its sum of digits gives 55061326944.

It is a congruent number.

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, 4332952 + ... + 4345640.

It is an arithmetic number, because the mean of its divisors is an integer number (626473575).

Almost surely, 2^55061326944 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 55061326944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90212194800).

55061326944 is an abundant number, since it is smaller than the sum of its proper divisors (125363062656).

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

55061326944 is a wasteful number, since it uses less digits than its factorization.

55061326944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12798 (or 12787 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 55061326944 in words is "fifty-five billion, sixty-one million, three hundred twenty-six thousand, nine hundred forty-four".