5050505050561 has 4 divisors (see below), whose sum is σ = 5167958656432. Its totient is φ = 4933051444692.

The previous prime is 5050505050541. The next prime is 5050505050573. The reversal of 5050505050561 is 1650505050505.

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.

It is a cyclic number.

It is not a de Polignac number, because 5050505050561 - 2⁷ = 5050505050433 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5050505050561.

It is not an unprimeable number, because it can be changed into a prime (5050505050541) 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 3 ways as a sum of consecutive naturals, for example, 58726802871 + ... + 58726802956.

It is an arithmetic number, because the mean of its divisors is an integer number (1291989664108).

Almost surely, 2^{5050505050561} is an apocalyptic number.

It is an amenable number.

5050505050561 is a deficient number, since it is larger than the sum of its proper divisors (117453605871).

5050505050561 is a wasteful number, since it uses less digits than its factorization.

5050505050561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117453605870.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 5050505050561 in words is "five trillion, fifty billion, five hundred five million, fifty thousand, five hundred sixty-one".