25230503 has 2 divisors, whose sum is σ = 25230504. Its totient is φ = 25230502.

The previous prime is 25230481. The next prime is 25230509. The reversal of 25230503 is 30503252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25230503 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25230509) 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, 12615251 + 12615252.

It is an arithmetic number, because the mean of its divisors is an integer number (12615252).

Almost surely, 2^25230503 is an apocalyptic number.

25230503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25230503 is an equidigital number, since it uses as much as digits as its factorization.

25230503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 25230503 is about 5022.9974119046. The cubic root of 25230503 is about 293.2976857794.

Adding to 25230503 its reverse (30503252), we get a palindrome (55733755).

The spelling of 25230503 in words is "twenty-five million, two hundred thirty thousand, five hundred three".