25432213 has 2 divisors, whose sum is σ = 25432214. Its totient is φ = 25432212.

The previous prime is 25432163. The next prime is 25432219. The reversal of 25432213 is 31223452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25331089 + 101124 = 5033^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 25432213 - 2⁹ = 25431701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25432219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12716106 + 12716107.

It is an arithmetic number, because the mean of its divisors is an integer number (12716107).

Almost surely, 2^25432213 is an apocalyptic number.

It is an amenable number.

25432213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25432213 is an equidigital number, since it uses as much as digits as its factorization.

25432213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 22.

The square root of 25432213 is about 5043.0360895001. The cubic root of 25432213 is about 294.0772199093.

Adding to 25432213 its reverse (31223452), we get a palindrome (56655665).

The spelling of 25432213 in words is "twenty-five million, four hundred thirty-two thousand, two hundred thirteen".