50515539811 has 16 divisors (see below), whose sum is σ = 55229866848. Its totient is φ = 45821664000.

The previous prime is 50515539803. The next prime is 50515539847. The reversal of 50515539811 is 11893551505.

It is a cyclic number.

It is not a de Polignac number, because 50515539811 - 2³ = 50515539803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50515539311) 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 15 ways as a sum of consecutive naturals, for example, 17679895 + ... + 17682751.

It is an arithmetic number, because the mean of its divisors is an integer number (3451866678).

Almost surely, 2^50515539811 is an apocalyptic number.

50515539811 is a deficient number, since it is larger than the sum of its proper divisors (4714327037).

50515539811 is a wasteful number, since it uses less digits than its factorization.

50515539811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862.

The product of its (nonzero) digits is 135000, while the sum is 43.

The spelling of 50515539811 in words is "fifty billion, five hundred fifteen million, five hundred thirty-nine thousand, eight hundred eleven".