5561050500561 has 16 divisors (see below), whose sum is σ = 7587309083904. Its totient is φ = 3621082627344.

The previous prime is 5561050500547. The next prime is 5561050500563. The reversal of 5561050500561 is 1650050501655.

It is not a de Polignac number, because 5561050500561 - 2⁶ = 5561050500497 is a prime.

It is a super-2 number, since 2×5561050500561² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5561050500563) 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, 7216870 + ... + 7950176.

It is an arithmetic number, because the mean of its divisors is an integer number (474206817744).

Almost surely, 2^{5561050500561} is an apocalyptic number.

It is an amenable number.

5561050500561 is a deficient number, since it is larger than the sum of its proper divisors (2026258583343).

5561050500561 is a wasteful number, since it uses less digits than its factorization.

5561050500561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792140.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 5561050500561 in words is "five trillion, five hundred sixty-one billion, fifty million, five hundred thousand, five hundred sixty-one".