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25741 is a prime number
BaseRepresentation
bin110010010001101
31022022101
412102031
51310431
6315101
7135022
oct62215
938271
1025741
1118381
1212a91
13b941
149549
157961
hex648d

25741 has 2 divisors, whose sum is σ = 25742. Its totient is φ = 25740.

The previous prime is 25733. The next prime is 25747. The reversal of 25741 is 14752.

25741 is nontrivially palindromic in base 11.

It is the 66-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23716 + 2025 = 154^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 25741 - 23 = 25733 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25747) 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, 12870 + 12871.

It is an arithmetic number, because the mean of its divisors is an integer number (12871).

225741 is an apocalyptic number.

It is an amenable number.

25741 is a deficient number, since it is larger than the sum of its proper divisors (1).

25741 is an equidigital number, since it uses as much as digits as its factorization.

25741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 280, while the sum is 19.

The square root of 25741 is about 160.4400199451. The cubic root of 25741 is about 29.5262621635.

The spelling of 25741 in words is "twenty-five thousand, seven hundred forty-one".