56055616064 has 56 divisors (see below), whose sum is σ = 127437367680. Its totient is φ = 23965019136.

The previous prime is 56055616051. The next prime is 56055616073. The reversal of 56055616064 is 46061655065.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30269 + ... + 336195.

It is an arithmetic number, because the mean of its divisors is an integer number (2275667280).

Almost surely, 2^56055616064 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 56055616064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63718683840).

56055616064 is an abundant number, since it is smaller than the sum of its proper divisors (71381751616).

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

56055616064 is a wasteful number, since it uses less digits than its factorization.

56055616064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306355 (or 306345 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 56055616064 in words is "fifty-six billion, fifty-five million, six hundred sixteen thousand, sixty-four".