25984297 has 2 divisors, whose sum is σ = 25984298. Its totient is φ = 25984296.

The previous prime is 25984289. The next prime is 25984303. The reversal of 25984297 is 79248952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18498601 + 7485696 = 4301^2 + 2736^2 .

It is a cyclic number.

It is not a de Polignac number, because 25984297 - 2³ = 25984289 is a prime.

It is not a weakly prime, because it can be changed into another prime (25984207) 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, 12992148 + 12992149.

It is an arithmetic number, because the mean of its divisors is an integer number (12992149).

Almost surely, 2^25984297 is an apocalyptic number.

It is an amenable number.

25984297 is a deficient number, since it is larger than the sum of its proper divisors (1).

25984297 is an equidigital number, since it uses as much as digits as its factorization.

25984297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 25984297 is about 5097.4794751916. The cubic root of 25984297 is about 296.1899537070.

The spelling of 25984297 in words is "twenty-five million, nine hundred eighty-four thousand, two hundred ninety-seven".