5561516505 has 32 divisors (see below), whose sum is σ = 9398874240. Its totient is φ = 2800396800.

The previous prime is 5561516489. The next prime is 5561516531. The reversal of 5561516505 is 5056151655.

It is not a de Polignac number, because 5561516505 - 2⁴ = 5561516489 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50205 + ... + 116805.

It is an arithmetic number, because the mean of its divisors is an integer number (293714820).

Almost surely, 2^5561516505 is an apocalyptic number.

It is an amenable number.

5561516505 is a deficient number, since it is larger than the sum of its proper divisors (3837357735).

5561516505 is a wasteful number, since it uses less digits than its factorization.

5561516505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66921.

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

The square root of 5561516505 is about 74575.5757939555. The cubic root of 5561516505 is about 1771.7308342839.

It can be divided in two parts, 556151650 and 5, that added together give a palindrome (556151655).

The spelling of 5561516505 in words is "five billion, five hundred sixty-one million, five hundred sixteen thousand, five hundred five".