56555074650 has 96 divisors (see below), whose sum is σ = 142506950400. Its totient is φ = 14840340480.

The previous prime is 56555074643. The next prime is 56555074669. The reversal of 56555074650 is 5647055565.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56555074650.

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, 4910799 + ... + 4922301.

It is an arithmetic number, because the mean of its divisors is an integer number (1484447400).

Almost surely, 2^56555074650 is an apocalyptic number.

56555074650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56555074650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71253475200).

56555074650 is an abundant number, since it is smaller than the sum of its proper divisors (85951875750).

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

56555074650 is a wasteful number, since it uses less digits than its factorization.

56555074650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12040 (or 12035 counting only the distinct ones).

The product of its (nonzero) digits is 3150000, while the sum is 48.

The spelling of 56555074650 in words is "fifty-six billion, five hundred fifty-five million, seventy-four thousand, six hundred fifty".