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BaseRepresentation
bin1110000011001001
32220221022
432003021
53320140
61122225
7326525
oct160311
986838
1057545
113a264
1229375
1320267
1416d85
15120b5
hexe0c9

57545 has 8 divisors (see below), whose sum is σ = 73224. Its totient is φ = 43264.

The previous prime is 57529. The next prime is 57557. The reversal of 57545 is 54575.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 26569 = 176^2 + 163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57545 - 24 = 57529 is a prime.

It is a super-2 number, since 2×575452 = 6622854050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 254 + ... + 423.

It is an arithmetic number, because the mean of its divisors is an integer number (9153).

257545 is an apocalyptic number.

It is an amenable number.

57545 is a deficient number, since it is larger than the sum of its proper divisors (15679).

57545 is a wasteful number, since it uses less digits than its factorization.

57545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699.

The product of its digits is 3500, while the sum is 26.

The square root of 57545 is about 239.8853893008. The cubic root of 57545 is about 38.6072793595.

Subtracting from 57545 its product of digits (3500), we obtain a palindrome (54045).

The spelling of 57545 in words is "fifty-seven thousand, five hundred forty-five".

Divisors: 1 5 17 85 677 3385 11509 57545