25993249 has 2 divisors, whose sum is σ = 25993250. Its totient is φ = 25993248.

The previous prime is 25993241. The next prime is 25993321. The reversal of 25993249 is 94239952.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17698849 + 8294400 = 4207^2 + 2880^2 .

It is a cyclic number.

It is not a de Polignac number, because 25993249 - 2³ = 25993241 is a prime.

It is not a weakly prime, because it can be changed into another prime (25993241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12996624 + 12996625.

It is an arithmetic number, because the mean of its divisors is an integer number (12996625).

Almost surely, 2^25993249 is an apocalyptic number.

It is an amenable number.

25993249 is a deficient number, since it is larger than the sum of its proper divisors (1).

25993249 is an equidigital number, since it uses as much as digits as its factorization.

25993249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 43.

The square root of 25993249 is about 5098.3574806010. The cubic root of 25993249 is about 296.2239638379.

The spelling of 25993249 in words is "twenty-five million, nine hundred ninety-three thousand, two hundred forty-nine".