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55113 = 318371
BaseRepresentation
bin1101011101001001
32210121020
431131021
53230423
61103053
7316452
oct153511
983536
1055113
1138453
1227a89
131c116
1416129
15114e3
hexd749

55113 has 4 divisors (see below), whose sum is σ = 73488. Its totient is φ = 36740.

The previous prime is 55109. The next prime is 55117. The reversal of 55113 is 31155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55109) and next prime (55117).

It is a cyclic number.

It is not a de Polignac number, because 55113 - 22 = 55109 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 55092 and 55101.

It is not an unprimeable number, because it can be changed into a prime (55117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9183 + ... + 9188.

It is an arithmetic number, because the mean of its divisors is an integer number (18372).

255113 is an apocalyptic number.

It is an amenable number.

55113 is a deficient number, since it is larger than the sum of its proper divisors (18375).

55113 is a wasteful number, since it uses less digits than its factorization.

55113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18374.

The product of its digits is 75, while the sum is 15.

The square root of 55113 is about 234.7615811840. The cubic root of 55113 is about 38.0555512537.

Adding to 55113 its reverse (31155), we get a palindrome (86268).

The spelling of 55113 in words is "fifty-five thousand, one hundred thirteen".

Divisors: 1 3 18371 55113