56006205560 has 64 divisors (see below), whose sum is σ = 133645204800. Its totient is φ = 21050136576.

The previous prime is 56006205557. The next prime is 56006205599. The reversal of 56006205560 is 6550260065.

It is a super-2 number, since 2×56006205560² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56006205560.

It is a congruent number.

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, 349661 + ... + 484019.

It is an arithmetic number, because the mean of its divisors is an integer number (2088206325).

Almost surely, 2^56006205560 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 56006205560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66822602400).

56006205560 is an abundant number, since it is smaller than the sum of its proper divisors (77638999240).

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

56006205560 is a wasteful number, since it uses less digits than its factorization.

56006205560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135000 (or 134996 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 56006205560 in words is "fifty-six billion, six million, two hundred five thousand, five hundred sixty".