2640503 has 2 divisors, whose sum is σ = 2640504. Its totient is φ = 2640502.

The previous prime is 2640497. The next prime is 2640509. The reversal of 2640503 is 3050462.

2640503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (2640497) and next prime (2640509).

It is a cyclic number.

It is not a de Polignac number, because 2640503 - 2¹² = 2636407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2640509) 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, 1320251 + 1320252.

It is an arithmetic number, because the mean of its divisors is an integer number (1320252).

2^2640503 is an apocalyptic number.

2640503 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640503 is an equidigital number, since it uses as much as digits as its factorization.

2640503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2640503 is about 1624.9624611049. The cubic root of 2640503 is about 138.2172416764.

Adding to 2640503 its reverse (3050462), we get a palindrome (5690965).

The spelling of 2640503 in words is "two million, six hundred forty thousand, five hundred three".