50636503663 has 4 divisors (see below), whose sum is σ = 50666844760. Its totient is φ = 50606162568.

The previous prime is 50636503639. The next prime is 50636503681. The reversal of 50636503663 is 36630563605.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50636503663 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 (50636503633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15168045 + ... + 15171382.

It is an arithmetic number, because the mean of its divisors is an integer number (12666711190).

Almost surely, 2^50636503663 is an apocalyptic number.

50636503663 is a deficient number, since it is larger than the sum of its proper divisors (30341097).

50636503663 is a wasteful number, since it uses less digits than its factorization.

50636503663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30341096.

The product of its (nonzero) digits is 874800, while the sum is 43.

The spelling of 50636503663 in words is "fifty billion, six hundred thirty-six million, five hundred three thousand, six hundred sixty-three".