50531043505 has 4 divisors (see below), whose sum is σ = 60637252212. Its totient is φ = 40424834800.

The previous prime is 50531043503. The next prime is 50531043517. The reversal of 50531043505 is 50534013505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50534013505 = 5 ⋅10106802701.

It can be written as a sum of positive squares in 2 ways, for example, as 35869708449 + 14661335056 = 189393^2 + 121084^2 .

It is not a de Polignac number, because 50531043505 - 2¹ = 50531043503 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50531043503) 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, 5053104346 + ... + 5053104355.

It is an arithmetic number, because the mean of its divisors is an integer number (15159313053).

Almost surely, 2^50531043505 is an apocalyptic number.

It is an amenable number.

50531043505 is a deficient number, since it is larger than the sum of its proper divisors (10106208707).

50531043505 is a wasteful number, since it uses less digits than its factorization.

50531043505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106208706.

The product of its (nonzero) digits is 22500, while the sum is 31.

The spelling of 50531043505 in words is "fifty billion, five hundred thirty-one million, forty-three thousand, five hundred five".