50000555565 has 24 divisors (see below), whose sum is σ = 87561118008. Its totient is φ = 26392043520.

The previous prime is 50000555509. The next prime is 50000555573. The reversal of 50000555565 is 56555500005.

50000555565 is a `hidden beast` number, since 50 + 0 + 0 + 0 + 55 + 556 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 644601321 + 49355954244 = 25389^2 + 222162^2 .

It is not a de Polignac number, because 50000555565 - 2¹¹ = 50000553517 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 5723076 + ... + 5731805.

It is an arithmetic number, because the mean of its divisors is an integer number (3648379917).

Almost surely, 2^50000555565 is an apocalyptic number.

It is an amenable number.

50000555565 is a deficient number, since it is larger than the sum of its proper divisors (37560562443).

50000555565 is a wasteful number, since it uses less digits than its factorization.

50000555565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11454989 (or 11454986 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The spelling of 50000555565 in words is "fifty billion, five hundred fifty-five thousand, five hundred sixty-five".