25523 has 2 divisors, whose sum is σ = 25524. Its totient is φ = 25522.
The previous prime is 25471. The next prime is 25537. The reversal of 25523 is 32552.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 25523 - 210 = 24499 is a prime.
It is a Sophie Germain prime.
It is a nialpdrome in base 14.
It is not a weakly prime, because it can be changed into another prime (25583) by changing a digit.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12761 + 12762.
It is an arithmetic number, because the mean of its divisors is an integer number (12762).
225523 is an apocalyptic number.
25523 is a deficient number, since it is larger than the sum of its proper divisors (1).
25523 is an equidigital number, since it uses as much as digits as its factorization.
25523 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 300, while the sum is 17.
The square root of 25523 is about 159.7591937887. The cubic root of 25523 is about 29.4426733109.
The spelling of 25523 in words is "twenty-five thousand, five hundred twenty-three".
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