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55306 = 227653
BaseRepresentation
bin1101100000001010
32210212101
431200022
53232211
61104014
7320146
oct154012
983771
1055306
1138609
122800a
131c234
1416226
15115c1
hexd80a

55306 has 4 divisors (see below), whose sum is σ = 82962. Its totient is φ = 27652.

The previous prime is 55291. The next prime is 55313. The reversal of 55306 is 60355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60355 = 512071.

It can be written as a sum of positive squares in only one way, i.e., 55225 + 81 = 235^2 + 9^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13825 + ... + 13828.

255306 is an apocalyptic number.

55306 is a deficient number, since it is larger than the sum of its proper divisors (27656).

55306 is a wasteful number, since it uses less digits than its factorization.

55306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27655.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 55306 is about 235.1722772777. The cubic root of 55306 is about 38.0999216960.

It can be divided in two parts, 55 and 306, that added together give a square (361 = 192).

The spelling of 55306 in words is "fifty-five thousand, three hundred six".

Divisors: 1 2 27653 55306