57423 has 4 divisors (see below), whose sum is σ = 76568. Its totient is φ = 38280.

The previous prime is 57413. The next prime is 57427. The reversal of 57423 is 32475.

It is a happy number.

57423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57423 - 2⁹ = 56911 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57427) 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, 9568 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (19142).

2⁵⁷⁴²³ is an apocalyptic number.

57423 is a deficient number, since it is larger than the sum of its proper divisors (19145).

57423 is a wasteful number, since it uses less digits than its factorization.

57423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19144.

The product of its digits is 840, while the sum is 21.

The square root of 57423 is about 239.6309662794. The cubic root of 57423 is about 38.5799765496.

Adding to 57423 its reverse (32475), we get a palindrome (89898).

The spelling of 57423 in words is "fifty-seven thousand, four hundred twenty-three".