25357 has 2 divisors, whose sum is σ = 25358. Its totient is φ = 25356.

The previous prime is 25349. The next prime is 25367. The reversal of 25357 is 75352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19881 + 5476 = 141^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 25357 - 2³ = 25349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12678 + 12679.

It is an arithmetic number, because the mean of its divisors is an integer number (12679).

It is an amenable number.

25357 is a deficient number, since it is larger than the sum of its proper divisors (1).

25357 is an equidigital number, since it uses as much as digits as its factorization.

25357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1050, while the sum is 22.

The square root of 25357 is about 159.2388143638. The cubic root of 25357 is about 29.3787033206.

The spelling of 25357 in words is "twenty-five thousand, three hundred fifty-seven".