50509717695 has 32 divisors (see below), whose sum is σ = 90101592000. Its totient is φ = 26846554752.

The previous prime is 50509717681. The next prime is 50509717697. The reversal of 50509717695 is 59671790505.

50509717695 is a `hidden beast` number, since 5 + 0 + 509 + 71 + 7 + 69 + 5 = 666.

It is not a de Polignac number, because 50509717695 - 2¹² = 50509713599 is a prime.

It is a super-2 number, since 2×50509717695² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50509717697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 598920 + ... + 678029.

It is an arithmetic number, because the mean of its divisors is an integer number (2815674750).

Almost surely, 2^50509717695 is an apocalyptic number.

50509717695 is a deficient number, since it is larger than the sum of its proper divisors (39591874305).

50509717695 is a wasteful number, since it uses less digits than its factorization.

50509717695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277256 (or 1277250 counting only the distinct ones).

The product of its (nonzero) digits is 2976750, while the sum is 54.

The spelling of 50509717695 in words is "fifty billion, five hundred nine million, seven hundred seventeen thousand, six hundred ninety-five".