50031705987 has 6 divisors (see below), whose sum is σ = 72268019772. Its totient is φ = 33354470652.

The previous prime is 50031705943. The next prime is 50031705991. The reversal of 50031705987 is 78950713005.

50031705987 is a `hidden beast` number, since 50 + 0 + 3 + 1 + 7 + 0 + 598 + 7 = 666.

It is not a de Polignac number, because 50031705987 - 2³¹ = 47884222339 is a prime.

It is a super-2 number, since 2×50031705987² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50031705917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2779539213 + ... + 2779539230.

It is an arithmetic number, because the mean of its divisors is an integer number (12044669962).

Almost surely, 2^50031705987 is an apocalyptic number.

50031705987 is a deficient number, since it is larger than the sum of its proper divisors (22236313785).

50031705987 is a wasteful number, since it uses less digits than its factorization.

50031705987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559078449 (or 5559078446 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 50031705987 in words is "fifty billion, thirty-one million, seven hundred five thousand, nine hundred eighty-seven".