5115811 has 4 divisors (see below), whose sum is σ = 5125032. Its totient is φ = 5106592.

The previous prime is 5115797. The next prime is 5115823. The reversal of 5115811 is 1185115.

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

It is a cyclic number.

It is not a de Polignac number, because 5115811 - 2⁵ = 5115779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5115841) 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, 3721 + ... + 4906.

It is an arithmetic number, because the mean of its divisors is an integer number (1281258).

Almost surely, 2^5115811 is an apocalyptic number.

5115811 is a deficient number, since it is larger than the sum of its proper divisors (9221).

5115811 is an equidigital number, since it uses as much as digits as its factorization.

5115811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220.

The product of its digits is 200, while the sum is 22.

The square root of 5115811 is about 2261.8158634159. The cubic root of 5115811 is about 172.3077575498.

The spelling of 5115811 in words is "five million, one hundred fifteen thousand, eight hundred eleven".