53365 has 8 divisors (see below), whose sum is σ = 69048. Its totient is φ = 39360.

The previous prime is 53359. The next prime is 53377. The reversal of 53365 is 56335.

53365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4 + 53361 = 2^2 + 231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-53365 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346 + ... + 475.

It is an arithmetic number, because the mean of its divisors is an integer number (8631).

2⁵³³⁶⁵ is an apocalyptic number.

It is an amenable number.

53365 is a deficient number, since it is larger than the sum of its proper divisors (15683).

53365 is a wasteful number, since it uses less digits than its factorization.

53365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839.

The product of its digits is 1350, while the sum is 22.

The square root of 53365 is about 231.0086578464. The cubic root of 53365 is about 37.6488895498.

The spelling of 53365 in words is "fifty-three thousand, three hundred sixty-five".