25411 has 2 divisors, whose sum is σ = 25412. Its totient is φ = 25410.

The previous prime is 25409. The next prime is 25423. The reversal of 25411 is 11452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25411 - 2¹ = 25409 is a prime.

Together with 25409, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25391 and 25400.

It is not a weakly prime, because it can be changed into another prime (25471) 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, 12705 + 12706.

It is an arithmetic number, because the mean of its divisors is an integer number (12706).

2²⁵⁴¹¹ is an apocalyptic number.

25411 is a deficient number, since it is larger than the sum of its proper divisors (1).

25411 is an equidigital number, since it uses as much as digits as its factorization.

25411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40, while the sum is 13.

The square root of 25411 is about 159.4082808389. The cubic root of 25411 is about 29.3995433930.

Adding to 25411 its reverse (11452), we get a palindrome (36863).

The spelling of 25411 in words is "twenty-five thousand, four hundred eleven".