25901903 has 2 divisors, whose sum is σ = 25901904. Its totient is φ = 25901902.

The previous prime is 25901899. The next prime is 25901923. The reversal of 25901903 is 30910952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25901903 - 2² = 25901899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25901923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12950951 + 12950952.

It is an arithmetic number, because the mean of its divisors is an integer number (12950952).

Almost surely, 2^25901903 is an apocalyptic number.

25901903 is a deficient number, since it is larger than the sum of its proper divisors (1).

25901903 is an equidigital number, since it uses as much as digits as its factorization.

25901903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 25901903 is about 5089.3912209615. The cubic root of 25901903 is about 295.8765578226.

The spelling of 25901903 in words is "twenty-five million, nine hundred one thousand, nine hundred three".