50005605561 has 8 divisors (see below), whose sum is σ = 68476144704. Its totient is φ = 32436068400.

The previous prime is 50005605557. The next prime is 50005605577. The reversal of 50005605561 is 16550650005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50005605561 - 2² = 50005605557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50005645561) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 225250365 + ... + 225250586.

It is an arithmetic number, because the mean of its divisors is an integer number (8559518088).

Almost surely, 2^50005605561 is an apocalyptic number.

It is an amenable number.

50005605561 is a deficient number, since it is larger than the sum of its proper divisors (18470539143).

50005605561 is a wasteful number, since it uses less digits than its factorization.

50005605561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450500991.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 50005605561 in words is "fifty billion, five million, six hundred five thousand, five hundred sixty-one".