5115561 has 8 divisors (see below), whose sum is σ = 7440864. Its totient is φ = 3100320.

The previous prime is 5115559. The next prime is 5115569. The reversal of 5115561 is 1655115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5115561 - 2¹ = 5115559 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5115569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77476 + ... + 77541.

It is an arithmetic number, because the mean of its divisors is an integer number (930108).

Almost surely, 2^5115561 is an apocalyptic number.

It is an amenable number.

5115561 is a deficient number, since it is larger than the sum of its proper divisors (2325303).

5115561 is a wasteful number, since it uses less digits than its factorization.

5115561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155031.

The product of its digits is 750, while the sum is 24.

The square root of 5115561 is about 2261.7605974108. The cubic root of 5115561 is about 172.3049507194.

The spelling of 5115561 in words is "five million, one hundred fifteen thousand, five hundred sixty-one".