25305211 has 2 divisors, whose sum is σ = 25305212. Its totient is φ = 25305210.

The previous prime is 25305173. The next prime is 25305227. The reversal of 25305211 is 11250352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25305211 - 2¹¹ = 25303163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25305251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12652605 + 12652606.

It is an arithmetic number, because the mean of its divisors is an integer number (12652606).

Almost surely, 2^25305211 is an apocalyptic number.

25305211 is a deficient number, since it is larger than the sum of its proper divisors (1).

25305211 is an equidigital number, since it uses as much as digits as its factorization.

25305211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25305211 is about 5030.4285105744. The cubic root of 25305211 is about 293.5868872015.

Adding to 25305211 its reverse (11250352), we get a palindrome (36555563).

The spelling of 25305211 in words is "twenty-five million, three hundred five thousand, two hundred eleven".