25226211 has 16 divisors (see below), whose sum is σ = 34145280. Its totient is φ = 16564800.

The previous prime is 25226207. The next prime is 25226231. The reversal of 25226211 is 11262252.

It is a happy number.

It is not a de Polignac number, because 25226211 - 2² = 25226207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25226231) 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 in 15 ways as a sum of consecutive naturals, for example, 105430 + ... + 105668.

It is an arithmetic number, because the mean of its divisors is an integer number (2134080).

Almost surely, 2^25226211 is an apocalyptic number.

25226211 is a deficient number, since it is larger than the sum of its proper divisors (8919069).

25226211 is a wasteful number, since it uses less digits than its factorization.

25226211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626.

The product of its digits is 480, while the sum is 21.

The square root of 25226211 is about 5022.5701587932. The cubic root of 25226211 is about 293.2810537282.

Adding to 25226211 its reverse (11262252), we get a palindrome (36488463).

The spelling of 25226211 in words is "twenty-five million, two hundred twenty-six thousand, two hundred eleven".