25513349 has 2 divisors, whose sum is σ = 25513350. Its totient is φ = 25513348.

The previous prime is 25513337. The next prime is 25513361. The reversal of 25513349 is 94331552.

It is a balanced prime because it is at equal distance from previous prime (25513337) and next prime (25513361).

It can be written as a sum of positive squares in only one way, i.e., 16662724 + 8850625 = 4082^2 + 2975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25513349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25513309) 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, 12756674 + 12756675.

It is an arithmetic number, because the mean of its divisors is an integer number (12756675).

Almost surely, 2^25513349 is an apocalyptic number.

It is an amenable number.

25513349 is a deficient number, since it is larger than the sum of its proper divisors (1).

25513349 is an equidigital number, since it uses as much as digits as its factorization.

25513349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 32.

The square root of 25513349 is about 5051.0740442009. The cubic root of 25513349 is about 294.3896179499.

The spelling of 25513349 in words is "twenty-five million, five hundred thirteen thousand, three hundred forty-nine".