25429903 has 2 divisors, whose sum is σ = 25429904. Its totient is φ = 25429902.

The previous prime is 25429891. The next prime is 25429907. The reversal of 25429903 is 30992452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25429903 - 2⁵ = 25429871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25429907) 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, 12714951 + 12714952.

It is an arithmetic number, because the mean of its divisors is an integer number (12714952).

Almost surely, 2^25429903 is an apocalyptic number.

25429903 is a deficient number, since it is larger than the sum of its proper divisors (1).

25429903 is an equidigital number, since it uses as much as digits as its factorization.

25429903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 25429903 is about 5042.8070555991. The cubic root of 25429903 is about 294.0683159923.

The spelling of 25429903 in words is "twenty-five million, four hundred twenty-nine thousand, nine hundred three".