50316637557 has 4 divisors (see below), whose sum is σ = 67088850080. Its totient is φ = 33544425036.

The previous prime is 50316637549. The next prime is 50316637559. The reversal of 50316637557 is 75573661305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50316637557 - 2³ = 50316637549 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 (50316637559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8386106257 + ... + 8386106262.

It is an arithmetic number, because the mean of its divisors is an integer number (16772212520).

Almost surely, 2^50316637557 is an apocalyptic number.

It is an amenable number.

50316637557 is a deficient number, since it is larger than the sum of its proper divisors (16772212523).

50316637557 is a wasteful number, since it uses less digits than its factorization.

50316637557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16772212522.

The product of its (nonzero) digits is 1984500, while the sum is 48.

The spelling of 50316637557 in words is "fifty billion, three hundred sixteen million, six hundred thirty-seven thousand, five hundred fifty-seven".