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55856 = 243491
BaseRepresentation
bin1101101000110000
32211121202
431220300
53241411
61110332
7321563
oct155060
984552
1055856
1138a69
12283a8
131c568
14164da
151183b
hexda30

55856 has 10 divisors (see below), whose sum is σ = 108252. Its totient is φ = 27920.

The previous prime is 55849. The next prime is 55871. The reversal of 55856 is 65855.

It is a nialpdrome in base 16.

It is an unprimeable number.

55856 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 1730 + ... + 1761.

255856 is an apocalyptic number.

It is an amenable number.

55856 is a deficient number, since it is larger than the sum of its proper divisors (52396).

55856 is a wasteful number, since it uses less digits than its factorization.

55856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499 (or 3493 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 55856 is about 236.3387399476. The cubic root of 55856 is about 38.2258024009.

Subtracting 55856 from its reverse (65855), we obtain a palindrome (9999).

The spelling of 55856 in words is "fifty-five thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 16 3491 6982 13964 27928 55856