53723 has 4 divisors (see below), whose sum is σ = 55488. Its totient is φ = 51960.

The previous prime is 53719. The next prime is 53731. The reversal of 53723 is 32735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32735 = 5 ⋅6547.

It is a cyclic number.

It is not a de Polignac number, because 53723 - 2² = 53719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53695 and 53704.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 53723.

It is not an unprimeable number, because it can be changed into a prime (53773) 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, 836 + ... + 897.

It is an arithmetic number, because the mean of its divisors is an integer number (13872).

2⁵³⁷²³ is an apocalyptic number.

53723 is a deficient number, since it is larger than the sum of its proper divisors (1765).

53723 is a wasteful number, since it uses less digits than its factorization.

53723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764.

The product of its digits is 630, while the sum is 20.

The square root of 53723 is about 231.7822253755. The cubic root of 53723 is about 37.7328913893.

The spelling of 53723 in words is "fifty-three thousand, seven hundred twenty-three".