50564635648 has 44 divisors (see below), whose sum is σ = 101258703360. Its totient is φ = 25237594112.

The previous prime is 50564635631. The next prime is 50564635699. The reversal of 50564635648 is 84653646505.

It is a junction number, because it is equal to n+sod(n) for n = 50564635595 and 50564635604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539265 + ... + 626047.

Almost surely, 2^50564635648 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 50564635648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50629351680).

50564635648 is an abundant number, since it is smaller than the sum of its proper divisors (50694067712).

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

50564635648 is an equidigital number, since it uses as much as digits as its factorization.

50564635648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87372 (or 87354 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 50564635648 in words is "fifty billion, five hundred sixty-four million, six hundred thirty-five thousand, six hundred forty-eight".