57427 has 2 divisors, whose sum is σ = 57428. Its totient is φ = 57426.

The previous prime is 57413. The next prime is 57457. The reversal of 57427 is 72475.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57427 - 2¹⁵ = 24659 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (57457) 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, 28713 + 28714.

It is an arithmetic number, because the mean of its divisors is an integer number (28714).

2⁵⁷⁴²⁷ is an apocalyptic number.

57427 is a deficient number, since it is larger than the sum of its proper divisors (1).

57427 is an equidigital number, since it uses as much as digits as its factorization.

57427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960, while the sum is 25.

The square root of 57427 is about 239.6393123008. The cubic root of 57427 is about 38.5808723365.

It can be divided in two parts, 57 and 427, that added together give a palindrome (484).

The spelling of 57427 in words is "fifty-seven thousand, four hundred twenty-seven".