50543135309 has 4 divisors (see below), whose sum is σ = 50543729280. Its totient is φ = 50542541340.

The previous prime is 50543135303. The next prime is 50543135393. The reversal of 50543135309 is 90353134505.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50543135309 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 (50543135303) 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, 142589 + ... + 348450.

It is an arithmetic number, because the mean of its divisors is an integer number (12635932320).

Almost surely, 2^50543135309 is an apocalyptic number.

It is an amenable number.

50543135309 is a deficient number, since it is larger than the sum of its proper divisors (593971).

50543135309 is a wasteful number, since it uses less digits than its factorization.

50543135309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593970.

The product of its (nonzero) digits is 121500, while the sum is 38.

The spelling of 50543135309 in words is "fifty billion, five hundred forty-three million, one hundred thirty-five thousand, three hundred nine".