57422 has 4 divisors (see below), whose sum is σ = 86136. Its totient is φ = 28710.

The previous prime is 57413. The next prime is 57427. The reversal of 57422 is 22475.

57422 is nontrivially palindromic in base 12.

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

57422 is an undulating number in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 57394 and 57403.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14354 + ... + 14357.

It is an arithmetic number, because the mean of its divisors is an integer number (21534).

2⁵⁷⁴²² is an apocalyptic number.

57422 is a deficient number, since it is larger than the sum of its proper divisors (28714).

57422 is a wasteful number, since it uses less digits than its factorization.

57422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28713.

The product of its digits is 560, while the sum is 20.

The square root of 57422 is about 239.6288797286. The cubic root of 57422 is about 38.5797525963.

Adding to 57422 its reverse (22475), we get a palindrome (79897).

The spelling of 57422 in words is "fifty-seven thousand, four hundred twenty-two".