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25189 is a prime number
BaseRepresentation
bin110001001100101
31021112221
412021211
51301224
6312341
7133303
oct61145
937487
1025189
1117a1a
12126b1
13b608
149273
1576e4
hex6265

25189 has 2 divisors, whose sum is σ = 25190. Its totient is φ = 25188.

The previous prime is 25183. The next prime is 25219. The reversal of 25189 is 98152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24964 + 225 = 158^2 + 15^2 .

It is a cyclic number.

It is not a de Polignac number, because 25189 - 29 = 24677 is a prime.

25189 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25183) 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, 12594 + 12595.

It is an arithmetic number, because the mean of its divisors is an integer number (12595).

225189 is an apocalyptic number.

It is an amenable number.

25189 is a deficient number, since it is larger than the sum of its proper divisors (1).

25189 is an equidigital number, since it uses as much as digits as its factorization.

25189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 25189 is about 158.7104281388. The cubic root of 25189 is about 29.3136777183.

The spelling of 25189 in words is "twenty-five thousand, one hundred eighty-nine".