25350449 has 2 divisors, whose sum is σ = 25350450. Its totient is φ = 25350448.

The previous prime is 25350431. The next prime is 25350469. The reversal of 25350449 is 94405352.

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., 23348224 + 2002225 = 4832^2 + 1415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25350449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25350419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12675224 + 12675225.

It is an arithmetic number, because the mean of its divisors is an integer number (12675225).

Almost surely, 2^25350449 is an apocalyptic number.

It is an amenable number.

25350449 is a deficient number, since it is larger than the sum of its proper divisors (1).

25350449 is an equidigital number, since it uses as much as digits as its factorization.

25350449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 25350449 is about 5034.9229388343. The cubic root of 25350449 is about 293.7617309937.

The spelling of 25350449 in words is "twenty-five million, three hundred fifty thousand, four hundred forty-nine".