25349449 has 2 divisors, whose sum is σ = 25349450. Its totient is φ = 25349448.

The previous prime is 25349419. The next prime is 25349459. The reversal of 25349449 is 94494352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24950025 + 399424 = 4995^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 25349449 - 2⁷ = 25349321 is a prime.

It is not a weakly prime, because it can be changed into another prime (25349419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12674724 + 12674725.

It is an arithmetic number, because the mean of its divisors is an integer number (12674725).

Almost surely, 2^25349449 is an apocalyptic number.

It is an amenable number.

25349449 is a deficient number, since it is larger than the sum of its proper divisors (1).

25349449 is an equidigital number, since it uses as much as digits as its factorization.

25349449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 25349449 is about 5034.8236314691. The cubic root of 25349449 is about 293.7578682667.

The spelling of 25349449 in words is "twenty-five million, three hundred forty-nine thousand, four hundred forty-nine".