25211903 has 2 divisors, whose sum is σ = 25211904. Its totient is φ = 25211902.

The previous prime is 25211891. The next prime is 25211947. The reversal of 25211903 is 30911252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25211903 - 2⁸ = 25211647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25211983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12605951 + 12605952.

It is an arithmetic number, because the mean of its divisors is an integer number (12605952).

Almost surely, 2^25211903 is an apocalyptic number.

25211903 is a deficient number, since it is larger than the sum of its proper divisors (1).

25211903 is an equidigital number, since it uses as much as digits as its factorization.

25211903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 25211903 is about 5021.1455864175. The cubic root of 25211903 is about 293.2255947597.

The spelling of 25211903 in words is "twenty-five million, two hundred eleven thousand, nine hundred three".