5495209 has 4 divisors (see below), whose sum is σ = 5504004. Its totient is φ = 5486416.

The previous prime is 5495179. The next prime is 5495227. The reversal of 5495209 is 9025945.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5290000 + 205209 = 2300^2 + 453^2 .

It is a cyclic number.

It is not a de Polignac number, because 5495209 - 2⁵ = 5495177 is a prime.

It is an Ulam number.

It is a Duffinian number.

5495209 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5495249) by changing a digit.

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, 3382 + ... + 4735.

It is an arithmetic number, because the mean of its divisors is an integer number (1376001).

Almost surely, 2^5495209 is an apocalyptic number.

It is an amenable number.

5495209 is a deficient number, since it is larger than the sum of its proper divisors (8795).

5495209 is an equidigital number, since it uses as much as digits as its factorization.

5495209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 5495209 is about 2344.1862127399. The cubic root of 5495209 is about 176.4661476377.

The spelling of 5495209 in words is "five million, four hundred ninety-five thousand, two hundred nine".