5105785 has 4 divisors (see below), whose sum is σ = 6126948. Its totient is φ = 4084624.

The previous prime is 5105759. The next prime is 5105791. The reversal of 5105785 is 5875015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5875015 = 5 ⋅1175003.

It can be written as a sum of positive squares in 2 ways, for example, as 1951609 + 3154176 = 1397^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 5105785 - 2⁵ = 5105753 is a prime.

It is a Duffinian number.

5105785 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510574 + ... + 510583.

It is an arithmetic number, because the mean of its divisors is an integer number (1531737).

Almost surely, 2^5105785 is an apocalyptic number.

It is an amenable number.

5105785 is a deficient number, since it is larger than the sum of its proper divisors (1021163).

5105785 is a wasteful number, since it uses less digits than its factorization.

5105785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021162.

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 5105785 is about 2259.5984156482. The cubic root of 5105785 is about 172.1951206439.

The spelling of 5105785 in words is "five million, one hundred five thousand, seven hundred eighty-five".