25650211 has 2 divisors, whose sum is σ = 25650212. Its totient is φ = 25650210.

The previous prime is 25650199. The next prime is 25650217. The reversal of 25650211 is 11205652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25650211 - 2⁵ = 25650179 is a prime.

It is not a weakly prime, because it can be changed into another prime (25650217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12825105 + 12825106.

It is an arithmetic number, because the mean of its divisors is an integer number (12825106).

Almost surely, 2^25650211 is an apocalyptic number.

25650211 is a deficient number, since it is larger than the sum of its proper divisors (1).

25650211 is an equidigital number, since it uses as much as digits as its factorization.

25650211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 25650211 is about 5064.6037357329. The cubic root of 25650211 is about 294.9150804121.

Adding to 25650211 its reverse (11205652), we get a palindrome (36855863).

The spelling of 25650211 in words is "twenty-five million, six hundred fifty thousand, two hundred eleven".