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BaseRepresentation
bin1100111110101101
32200221002
430332231
53200130
61050045
7311000
oct147655
980832
1053165
1136a42
1226925
131b278
1415537
1510b45

53165 has 16 divisors (see below), whose sum is σ = 76800. Its totient is φ = 35280.

The previous prime is 53161. The next prime is 53171. The reversal of 53165 is 56135.

It is not a de Polignac number, because 53165 - 22 = 53161 is a prime.

It is a Curzon number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1700 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (4800).

253165 is an apocalyptic number.

It is an amenable number.

53165 is a deficient number, since it is larger than the sum of its proper divisors (23635).

53165 is an equidigital number, since it uses as much as digits as its factorization.

53165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57 (or 43 counting only the distinct ones).

The product of its digits is 450, while the sum is 20.

The square root of 53165 is about 230.5753672880. The cubic root of 53165 is about 37.6017974846.

The spelling of 53165 in words is "fifty-three thousand, one hundred sixty-five".