50505605505 has 24 divisors (see below), whose sum is σ = 89909080872. Its totient is φ = 26208313344.

The previous prime is 50505605489. The next prime is 50505605519. The reversal of 50505605505 is 50550650505.

50505605505 is a `hidden beast` number, since 5 + 0 + 50 + 56 + 0 + 550 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2812286961 + 47693318544 = 53031^2 + 218388^2 .

It is not a de Polignac number, because 50505605505 - 2⁴ = 50505605489 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50505605505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15165184 + ... + 15168513.

It is an arithmetic number, because the mean of its divisors is an integer number (3746211703).

Almost surely, 2^50505605505 is an apocalyptic number.

It is an amenable number.

50505605505 is a deficient number, since it is larger than the sum of its proper divisors (39403475367).

50505605505 is a wasteful number, since it uses less digits than its factorization.

50505605505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30333745 (or 30333742 counting only the distinct ones).

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

The spelling of 50505605505 in words is "fifty billion, five hundred five million, six hundred five thousand, five hundred five".