25135213 has 2 divisors, whose sum is σ = 25135214. Its totient is φ = 25135212.

The previous prime is 25135189. The next prime is 25135237. The reversal of 25135213 is 31253152.

It is a balanced prime because it is at equal distance from previous prime (25135189) and next prime (25135237).

It can be written as a sum of positive squares in only one way, i.e., 15382084 + 9753129 = 3922^2 + 3123^2 .

It is a cyclic number.

It is not a de Polignac number, because 25135213 - 2⁵ = 25135181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25135273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567606 + 12567607.

It is an arithmetic number, because the mean of its divisors is an integer number (12567607).

Almost surely, 2^25135213 is an apocalyptic number.

It is an amenable number.

25135213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25135213 is an equidigital number, since it uses as much as digits as its factorization.

25135213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 22.

The square root of 25135213 is about 5013.5030667189. The cubic root of 25135213 is about 292.9279799069.

Adding to 25135213 its reverse (31253152), we get a palindrome (56388365).

The spelling of 25135213 in words is "twenty-five million, one hundred thirty-five thousand, two hundred thirteen".