50505560687 has 2 divisors, whose sum is σ = 50505560688. Its totient is φ = 50505560686.

The previous prime is 50505560681. The next prime is 50505560737. The reversal of 50505560687 is 78606550505.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50505560687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50505560681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25252780343 + 25252780344.

It is an arithmetic number, because the mean of its divisors is an integer number (25252780344).

Almost surely, 2^50505560687 is an apocalyptic number.

50505560687 is a deficient number, since it is larger than the sum of its proper divisors (1).

50505560687 is an equidigital number, since it uses as much as digits as its factorization.

50505560687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260000, while the sum is 47.

The spelling of 50505560687 in words is "fifty billion, five hundred five million, five hundred sixty thousand, six hundred eighty-seven".