2503409 has 2 divisors, whose sum is σ = 2503410. Its totient is φ = 2503408.

The previous prime is 2503387. The next prime is 2503427. The reversal of 2503409 is 9043052.

2503409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2093809 + 409600 = 1447^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 2503409 - 2⁸ = 2503153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2503439) 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 as a sum of consecutive naturals, namely, 1251704 + 1251705.

It is an arithmetic number, because the mean of its divisors is an integer number (1251705).

2^2503409 is an apocalyptic number.

It is an amenable number.

2503409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2503409 is an equidigital number, since it uses as much as digits as its factorization.

2503409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2503409 is about 1582.2164832917. The cubic root of 2503409 is about 135.7825424753.

The spelling of 2503409 in words is "two million, five hundred three thousand, four hundred nine".