25242299 has 2 divisors, whose sum is σ = 25242300. Its totient is φ = 25242298.

The previous prime is 25242289. The next prime is 25242319. The reversal of 25242299 is 99224252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25242299 is a prime.

It is not a weakly prime, because it can be changed into another prime (25242289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12621149 + 12621150.

It is an arithmetic number, because the mean of its divisors is an integer number (12621150).

Almost surely, 2^25242299 is an apocalyptic number.

25242299 is a deficient number, since it is larger than the sum of its proper divisors (1).

25242299 is an equidigital number, since it uses as much as digits as its factorization.

25242299 is an evil number, because the sum of its binary digits is even.

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

The square root of 25242299 is about 5024.1714739845. The cubic root of 25242299 is about 293.3433870808.

The spelling of 25242299 in words is "twenty-five million, two hundred forty-two thousand, two hundred ninety-nine".