50990744560 has 240 divisors, whose sum is σ = 142252207776. Its totient is φ = 16940292096.

The previous prime is 50990744549. The next prime is 50990744579. The reversal of 50990744560 is 6544709905.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17242602 + ... + 17245558.

Almost surely, 2^50990744560 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 50990744560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71126103888).

50990744560 is an abundant number, since it is smaller than the sum of its proper divisors (91261463216).

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

50990744560 is a wasteful number, since it uses less digits than its factorization.

50990744560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 3107 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 50990744560 in words is "fifty billion, nine hundred ninety million, seven hundred forty-four thousand, five hundred sixty".