25492213 has 2 divisors, whose sum is σ = 25492214. Its totient is φ = 25492212.

The previous prime is 25492193. The next prime is 25492237. The reversal of 25492213 is 31229452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14884164 + 10608049 = 3858^2 + 3257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25492213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25492613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12746106 + 12746107.

It is an arithmetic number, because the mean of its divisors is an integer number (12746107).

Almost surely, 2^25492213 is an apocalyptic number.

It is an amenable number.

25492213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25492213 is an equidigital number, since it uses as much as digits as its factorization.

25492213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 25492213 is about 5048.9813824176. The cubic root of 25492213 is about 294.3083018517.

The spelling of 25492213 in words is "twenty-five million, four hundred ninety-two thousand, two hundred thirteen".