56653243520 has 128 divisors (see below), whose sum is σ = 138944367360. Its totient is φ = 22078775296.

The previous prime is 56653243487. The next prime is 56653243541. The reversal of 56653243520 is 2534235665.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6824012 + ... + 6832308.

It is an arithmetic number, because the mean of its divisors is an integer number (1085502870).

Almost surely, 2^56653243520 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 56653243520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69472183680).

56653243520 is an abundant number, since it is smaller than the sum of its proper divisors (82291123840).

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

56653243520 is a wasteful number, since it uses less digits than its factorization.

56653243520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8590 (or 8578 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 56653243520 in words is "fifty-six billion, six hundred fifty-three million, two hundred forty-three thousand, five hundred twenty".