5105560561 has 4 divisors (see below), whose sum is σ = 5162926500. Its totient is φ = 5048194624.

The previous prime is 5105560553. The next prime is 5105560567. The reversal of 5105560561 is 1650655015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 699919936 + 4405640625 = 26456^2 + 66375^2 .

It is a cyclic number.

It is not a de Polignac number, because 5105560561 - 2³ = 5105560553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5105560567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28682836 + ... + 28683013.

It is an arithmetic number, because the mean of its divisors is an integer number (1290731625).

Almost surely, 2^5105560561 is an apocalyptic number.

It is an amenable number.

5105560561 is a deficient number, since it is larger than the sum of its proper divisors (57365939).

5105560561 is an equidigital number, since it uses as much as digits as its factorization.

5105560561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57365938.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 5105560561 is about 71453.2053934601. The cubic root of 5105560561 is about 1721.9259750154.

The spelling of 5105560561 in words is "five billion, one hundred five million, five hundred sixty thousand, five hundred sixty-one".