25213427 has 2 divisors, whose sum is σ = 25213428. Its totient is φ = 25213426.

The previous prime is 25213423. The next prime is 25213453. The reversal of 25213427 is 72431252.

It is an a-pointer prime, because the next prime (25213453) can be obtained adding 25213427 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25213427 - 2² = 25213423 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25213396 and 25213405.

It is not a weakly prime, because it can be changed into another prime (25213421) 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 as a sum of consecutive naturals, namely, 12606713 + 12606714.

It is an arithmetic number, because the mean of its divisors is an integer number (12606714).

Almost surely, 2^25213427 is an apocalyptic number.

25213427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25213427 is an equidigital number, since it uses as much as digits as its factorization.

25213427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 26.

The square root of 25213427 is about 5021.2973423210. The cubic root of 25213427 is about 293.2315029056.

Adding to 25213427 its reverse (72431252), we get a palindrome (97644679).

The spelling of 25213427 in words is "twenty-five million, two hundred thirteen thousand, four hundred twenty-seven".