53573 has 6 divisors (see below), whose sum is σ = 58194. Its totient is φ = 49296.

The previous prime is 53569. The next prime is 53591. The reversal of 53573 is 37535.

It can be written as a sum of positive squares in 3 ways, for example, as 3844 + 49729 = 62^2 + 223^2 .

It is not a de Polignac number, because 53573 - 2² = 53569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11 + ... + 327.

It is an arithmetic number, because the mean of its divisors is an integer number (9699).

2⁵³⁵⁷³ is an apocalyptic number.

It is an amenable number.

53573 is a deficient number, since it is larger than the sum of its proper divisors (4621).

53573 is a wasteful number, since it uses less digits than its factorization.

53573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 330 counting only the distinct ones).

The product of its digits is 1575, while the sum is 23.

The square root of 53573 is about 231.4584195919. The cubic root of 53573 is about 37.6977406494.

It can be divided in two parts, 53 and 573, that added together give a palindrome (626).

The spelling of 53573 in words is "fifty-three thousand, five hundred seventy-three".