25349 has 2 divisors, whose sum is σ = 25350. Its totient is φ = 25348.

The previous prime is 25343. The next prime is 25357. The reversal of 25349 is 94352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20449 + 4900 = 143^2 + 70^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25349 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12674 + 12675.

It is an arithmetic number, because the mean of its divisors is an integer number (12675).

2²⁵³⁴⁹ is an apocalyptic number.

It is an amenable number.

25349 is a deficient number, since it is larger than the sum of its proper divisors (1).

25349 is an equidigital number, since it uses as much as digits as its factorization.

25349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 25349 is about 159.2136928785. The cubic root of 25349 is about 29.3756133869.

The spelling of 25349 in words is "twenty-five thousand, three hundred forty-nine".