25249229 has 2 divisors, whose sum is σ = 25249230. Its totient is φ = 25249228.

The previous prime is 25249201. The next prime is 25249241. The reversal of 25249229 is 92294252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23785129 + 1464100 = 4877^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 25249229 - 2¹² = 25245133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25249129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12624614 + 12624615.

It is an arithmetic number, because the mean of its divisors is an integer number (12624615).

Almost surely, 2^25249229 is an apocalyptic number.

It is an amenable number.

25249229 is a deficient number, since it is larger than the sum of its proper divisors (1).

25249229 is an equidigital number, since it uses as much as digits as its factorization.

25249229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 25249229 is about 5024.8610926074. The cubic root of 25249229 is about 293.3702293752.

The spelling of 25249229 in words is "twenty-five million, two hundred forty-nine thousand, two hundred twenty-nine".