25229 has 2 divisors, whose sum is σ = 25230. Its totient is φ = 25228.

The previous prime is 25219. The next prime is 25237. The reversal of 25229 is 92252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15625 + 9604 = 125^2 + 98^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25229 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p₂₇₈₃ and since 25229 and 2783 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12614 + 12615.

It is an arithmetic number, because the mean of its divisors is an integer number (12615).

2²⁵²²⁹ is an apocalyptic number.

It is an amenable number.

25229 is a deficient number, since it is larger than the sum of its proper divisors (1).

25229 is an equidigital number, since it uses as much as digits as its factorization.

25229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 25229 is about 158.8363938145. The cubic root of 25229 is about 29.3291861676.

The spelling of 25229 in words is "twenty-five thousand, two hundred twenty-nine".