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55586 = 227793
BaseRepresentation
bin1101100100100010
32211020202
431210202
53234321
61105202
7321026
oct154442
984222
1055586
1138843
1228202
131c3bb
1416386
151170b
hexd922

55586 has 4 divisors (see below), whose sum is σ = 83382. Its totient is φ = 27792.

The previous prime is 55579. The next prime is 55589. The reversal of 55586 is 68555.

55586 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68555 = 513711.

It can be written as a sum of positive squares in only one way, i.e., 55225 + 361 = 235^2 + 19^2 .

It is a nialpdrome in base 9 and base 16.

It is not an unprimeable number, because it can be changed into a prime (55589) 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, 13895 + ... + 13898.

255586 is an apocalyptic number.

55586 is a deficient number, since it is larger than the sum of its proper divisors (27796).

55586 is a wasteful number, since it uses less digits than its factorization.

55586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27795.

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

The square root of 55586 is about 235.7668339695. The cubic root of 55586 is about 38.1641101835.

The spelling of 55586 in words is "fifty-five thousand, five hundred eighty-six".

Divisors: 1 2 27793 55586