25123103 has 2 divisors, whose sum is σ = 25123104. Its totient is φ = 25123102.

The previous prime is 25123099. The next prime is 25123129. The reversal of 25123103 is 30132152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25123103 - 2² = 25123099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25123183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12561551 + 12561552.

It is an arithmetic number, because the mean of its divisors is an integer number (12561552).

Almost surely, 2^25123103 is an apocalyptic number.

25123103 is a deficient number, since it is larger than the sum of its proper divisors (1).

25123103 is an equidigital number, since it uses as much as digits as its factorization.

25123103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 25123103 is about 5012.2951828479. The cubic root of 25123103 is about 292.8809286819.

Adding to 25123103 its reverse (30132152), we get a palindrome (55255255).

The spelling of 25123103 in words is "twenty-five million, one hundred twenty-three thousand, one hundred three".