25783903 has 2 divisors, whose sum is σ = 25783904. Its totient is φ = 25783902.

The previous prime is 25783873. The next prime is 25783913. The reversal of 25783903 is 30938752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25783903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25783913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12891951 + 12891952.

It is an arithmetic number, because the mean of its divisors is an integer number (12891952).

Almost surely, 2^25783903 is an apocalyptic number.

25783903 is a deficient number, since it is larger than the sum of its proper divisors (1).

25783903 is an equidigital number, since it uses as much as digits as its factorization.

25783903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 25783903 is about 5077.7852455574. The cubic root of 25783903 is about 295.4265704709.

The spelling of 25783903 in words is "twenty-five million, seven hundred eighty-three thousand, nine hundred three".