25488499 has 2 divisors, whose sum is σ = 25488500. Its totient is φ = 25488498.

The previous prime is 25488497. The next prime is 25488521. The reversal of 25488499 is 99488452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25488499 - 2¹ = 25488497 is a prime.

Together with 25488497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25488497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12744249 + 12744250.

It is an arithmetic number, because the mean of its divisors is an integer number (12744250).

Almost surely, 2^25488499 is an apocalyptic number.

25488499 is a deficient number, since it is larger than the sum of its proper divisors (1).

25488499 is an equidigital number, since it uses as much as digits as its factorization.

25488499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The square root of 25488499 is about 5048.6135720611. The cubic root of 25488499 is about 294.2940084134.

The spelling of 25488499 in words is "twenty-five million, four hundred eighty-eight thousand, four hundred ninety-nine".