5186665 has 12 divisors (see below), whose sum is σ = 6842052. Its totient is φ = 3771680.

The previous prime is 5186663. The next prime is 5186681. The reversal of 5186665 is 5666815.

5186665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1771561 + 3415104 = 1331^2 + 1848^2 .

It is not a de Polignac number, because 5186665 - 2¹ = 5186663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5186663) 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 11 ways as a sum of consecutive naturals, for example, 3682 + ... + 4891.

It is an arithmetic number, because the mean of its divisors is an integer number (570171).

Almost surely, 2^5186665 is an apocalyptic number.

5186665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5186665 is a deficient number, since it is larger than the sum of its proper divisors (1655387).

5186665 is a wasteful number, since it uses less digits than its factorization.

5186665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600 (or 8589 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 5186665 is about 2277.4250810949. The cubic root of 5186665 is about 173.0996007259.

It can be divided in two parts, 518666 and 5, that added together give a triangular number (518671 = T₁₀₁₈).

The spelling of 5186665 in words is "five million, one hundred eighty-six thousand, six hundred sixty-five".