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BaseRepresentation
bin1110000100101001
32221001212
432010221
53321031
61122505
7330023
oct160451
987055
1057641
113a341
1229435
132030c
1417013
151212b
hexe129

57641 has 2 divisors, whose sum is σ = 57642. Its totient is φ = 57640.

The previous prime is 57637. The next prime is 57649. The reversal of 57641 is 14675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32041 + 25600 = 179^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 57641 - 22 = 57637 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57649) 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, 28820 + 28821.

It is an arithmetic number, because the mean of its divisors is an integer number (28821).

257641 is an apocalyptic number.

It is an amenable number.

57641 is a deficient number, since it is larger than the sum of its proper divisors (1).

57641 is an equidigital number, since it uses as much as digits as its factorization.

57641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 57641 is about 240.0854014721. The cubic root of 57641 is about 38.6287364204.

The spelling of 57641 in words is "fifty-seven thousand, six hundred forty-one".