25349617 has 2 divisors, whose sum is σ = 25349618. Its totient is φ = 25349616.

The previous prime is 25349563. The next prime is 25349633. The reversal of 25349617 is 71694352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19044496 + 6305121 = 4364^2 + 2511^2 .

It is a cyclic number.

It is not a de Polignac number, because 25349617 - 2¹⁵ = 25316849 is a prime.

It is not a weakly prime, because it can be changed into another prime (25349677) 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, 12674808 + 12674809.

It is an arithmetic number, because the mean of its divisors is an integer number (12674809).

Almost surely, 2^25349617 is an apocalyptic number.

It is an amenable number.

25349617 is a deficient number, since it is larger than the sum of its proper divisors (1).

25349617 is an equidigital number, since it uses as much as digits as its factorization.

25349617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 25349617 is about 5034.8403152434. The cubic root of 25349617 is about 293.7585172119.

The spelling of 25349617 in words is "twenty-five million, three hundred forty-nine thousand, six hundred seventeen".