2504305 has 4 divisors (see below), whose sum is σ = 3005172. Its totient is φ = 2003440.

The previous prime is 2504297. The next prime is 2504317. The reversal of 2504305 is 5034052.

It is a happy number.

2504305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 349281 + 2155024 = 591^2 + 1468^2 .

It is not a de Polignac number, because 2504305 - 2³ = 2504297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 250426 + ... + 250435.

It is an arithmetic number, because the mean of its divisors is an integer number (751293).

2^2504305 is an apocalyptic number.

It is an amenable number.

2504305 is a deficient number, since it is larger than the sum of its proper divisors (500867).

2504305 is an equidigital number, since it uses as much as digits as its factorization.

2504305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500866.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 2504305 is about 1582.4996050552. The cubic root of 2504305 is about 135.7987399413.

Adding to 2504305 its reverse (5034052), we get a palindrome (7538357).

It can be divided in two parts, 2504 and 305, that added together give a square (2809 = 53²).

The spelling of 2504305 in words is "two million, five hundred four thousand, three hundred five".