25211227 has 2 divisors, whose sum is σ = 25211228. Its totient is φ = 25211226.

The previous prime is 25211213. The next prime is 25211261. The reversal of 25211227 is 72211252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25211227 - 2⁷ = 25211099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25211198 and 25211207.

It is not a weakly prime, because it can be changed into another prime (25211267) 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, 12605613 + 12605614.

It is an arithmetic number, because the mean of its divisors is an integer number (12605614).

Almost surely, 2^25211227 is an apocalyptic number.

25211227 is a deficient number, since it is larger than the sum of its proper divisors (1).

25211227 is an equidigital number, since it uses as much as digits as its factorization.

25211227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 22.

The square root of 25211227 is about 5021.0782706506. The cubic root of 25211227 is about 293.2229740098. Note that the first 3 decimals are identical.

Adding to 25211227 its reverse (72211252), we get a palindrome (97422479).

The spelling of 25211227 in words is "twenty-five million, two hundred eleven thousand, two hundred twenty-seven".