5116561 has 4 divisors (see below), whose sum is σ = 5225472. Its totient is φ = 5007652.

The previous prime is 5116543. The next prime is 5116571. The reversal of 5116561 is 1656115.

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 5116561 - 2⁹ = 5116049 is a prime.

It is a Duffinian number.

5116561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5116571) 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, 54385 + ... + 54478.

It is an arithmetic number, because the mean of its divisors is an integer number (1306368).

Almost surely, 2^5116561 is an apocalyptic number.

It is an amenable number.

5116561 is a deficient number, since it is larger than the sum of its proper divisors (108911).

5116561 is a wasteful number, since it uses less digits than its factorization.

5116561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108910.

The product of its digits is 900, while the sum is 25.

The square root of 5116561 is about 2261.9816533297. The cubic root of 5116561 is about 172.3161774923.

The spelling of 5116561 in words is "five million, one hundred sixteen thousand, five hundred sixty-one".