25330213 has 2 divisors, whose sum is σ = 25330214. Its totient is φ = 25330212.

The previous prime is 25330157. The next prime is 25330231. The reversal of 25330213 is 31203352.

Together with next prime (25330231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19342404 + 5987809 = 4398^2 + 2447^2 .

It is a cyclic number.

It is not a de Polignac number, because 25330213 - 2²¹ = 23233061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25330243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12665106 + 12665107.

It is an arithmetic number, because the mean of its divisors is an integer number (12665107).

Almost surely, 2^25330213 is an apocalyptic number.

It is an amenable number.

25330213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25330213 is an equidigital number, since it uses as much as digits as its factorization.

25330213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 25330213 is about 5032.9129736168. The cubic root of 25330213 is about 293.6835450697.

Adding to 25330213 its reverse (31203352), we get a palindrome (56533565).

The spelling of 25330213 in words is "twenty-five million, three hundred thirty thousand, two hundred thirteen".