25742903 has 2 divisors, whose sum is σ = 25742904. Its totient is φ = 25742902.

The previous prime is 25742881. The next prime is 25742909. The reversal of 25742903 is 30924752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25742903 - 2¹⁶ = 25677367 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25742903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25742909) 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, 12871451 + 12871452.

It is an arithmetic number, because the mean of its divisors is an integer number (12871452).

Almost surely, 2^25742903 is an apocalyptic number.

25742903 is a deficient number, since it is larger than the sum of its proper divisors (1).

25742903 is an equidigital number, since it uses as much as digits as its factorization.

25742903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 25742903 is about 5073.7464461678. The cubic root of 25742903 is about 295.2698975879.

The spelling of 25742903 in words is "twenty-five million, seven hundred forty-two thousand, nine hundred three".