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BaseRepresentation
bin1101111110011001
32220112001
431332121
53312431
61121001
7325612
oct157631
986461
1057241
113a008
1229161
1320092
1416c09
1511e61
hexdf99

57241 has 2 divisors, whose sum is σ = 57242. Its totient is φ = 57240.

The previous prime is 57223. The next prime is 57251. The reversal of 57241 is 14275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41616 + 15625 = 204^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 57241 - 215 = 24473 is a prime.

It is a Chen prime.

57241 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (57221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28620 + 28621.

It is an arithmetic number, because the mean of its divisors is an integer number (28621).

257241 is an apocalyptic number.

It is an amenable number.

57241 is a deficient number, since it is larger than the sum of its proper divisors (1).

57241 is an equidigital number, since it uses as much as digits as its factorization.

57241 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 57241 is about 239.2509143138. The cubic root of 57241 is about 38.5391741591.

The spelling of 57241 in words is "fifty-seven thousand, two hundred forty-one".