50503868687 has 4 divisors (see below), whose sum is σ = 50507202816. Its totient is φ = 50500534560.

The previous prime is 50503868663. The next prime is 50503868731. The reversal of 50503868687 is 78686830505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50503868687 - 2⁸ = 50503868431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50503868087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1644239 + ... + 1674672.

It is an arithmetic number, because the mean of its divisors is an integer number (12626800704).

Almost surely, 2^50503868687 is an apocalyptic number.

50503868687 is a deficient number, since it is larger than the sum of its proper divisors (3334129).

50503868687 is a wasteful number, since it uses less digits than its factorization.

50503868687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334128.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 50503868687 in words is "fifty billion, five hundred three million, eight hundred sixty-eight thousand, six hundred eighty-seven".