50105510110561 has 16 divisors (see below), whose sum is σ = 52060499321040. Its totient is φ = 48165951447040.

The previous prime is 50105510110559. The next prime is 50105510110571. The reversal of 50105510110561 is 16501101550105.

It can be written as a sum of positive squares in 8 ways, for example, as 1180297552225 + 48925212558336 = 1086415^2 + 6994656^2 .

It is a cyclic number.

It is not a de Polignac number, because 50105510110561 - 2¹ = 50105510110559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50105510110511) 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 15 ways as a sum of consecutive naturals, for example, 7391175 + ... + 12443491.

It is an arithmetic number, because the mean of its divisors is an integer number (3253781207565).

Almost surely, 2^{50105510110561} is an apocalyptic number.

It is an amenable number.

50105510110561 is a deficient number, since it is larger than the sum of its proper divisors (1954989210479).

50105510110561 is a wasteful number, since it uses less digits than its factorization.

50105510110561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053844.

The product of its (nonzero) digits is 3750, while the sum is 31.

Adding to 50105510110561 its reverse (16501101550105), we get a palindrome (66606611660666).

The spelling of 50105510110561 in words is "fifty trillion, one hundred five billion, five hundred ten million, one hundred ten thousand, five hundred sixty-one".