53173 has 2 divisors, whose sum is σ = 53174. Its totient is φ = 53172.

The previous prime is 53171. The next prime is 53189. The reversal of 53173 is 37135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47089 + 6084 = 217^2 + 78^2 .

It is a cyclic number.

It is not a de Polignac number, because 53173 - 2¹ = 53171 is a prime.

Together with 53171, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 53173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53171) 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 as a sum of consecutive naturals, namely, 26586 + 26587.

It is an arithmetic number, because the mean of its divisors is an integer number (26587).

2⁵³¹⁷³ is an apocalyptic number.

It is an amenable number.

53173 is a deficient number, since it is larger than the sum of its proper divisors (1).

53173 is an equidigital number, since it uses as much as digits as its factorization.

53173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 315, while the sum is 19.

The square root of 53173 is about 230.5927145423. The cubic root of 53173 is about 37.6036834327.

It can be divided in two parts, 5317 and 3, that multiplied together give a palindrome (15951).

The spelling of 53173 in words is "fifty-three thousand, one hundred seventy-three".