50555715840 has 720 divisors, whose sum is σ = 211907203200. Its totient is φ = 11267112960.

The previous prime is 50555715811. The next prime is 50555715851. The reversal of 50555715840 is 4851755505.

50555715840 is a `hidden beast` number, since 5 + 0 + 5 + 557 + 1 + 58 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 29755311 + ... + 29757009.

It is an arithmetic number, because the mean of its divisors is an integer number (294315560).

Almost surely, 2^50555715840 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 50555715840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105953601600).

50555715840 is an abundant number, since it is smaller than the sum of its proper divisors (161351487360).

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

50555715840 is a wasteful number, since it uses less digits than its factorization.

50555715840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 700000, while the sum is 45.

The spelling of 50555715840 in words is "fifty billion, five hundred fifty-five million, seven hundred fifteen thousand, eight hundred forty".