28452503 has 2 divisors, whose sum is σ = 28452504. Its totient is φ = 28452502.

The previous prime is 28452497. The next prime is 28452517. The reversal of 28452503 is 30525482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28452503 - 2⁶ = 28452439 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28452533) 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 as a sum of consecutive naturals, namely, 14226251 + 14226252.

It is an arithmetic number, because the mean of its divisors is an integer number (14226252).

Almost surely, 2^28452503 is an apocalyptic number.

28452503 is a deficient number, since it is larger than the sum of its proper divisors (1).

28452503 is an equidigital number, since it uses as much as digits as its factorization.

28452503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 28452503 is about 5334.0887694151. The cubic root of 28452503 is about 305.2859559485.

Adding to 28452503 its reverse (30525482), we get a palindrome (58977985).

The spelling of 28452503 in words is "twenty-eight million, four hundred fifty-two thousand, five hundred three".