57005423 has 2 divisors, whose sum is σ = 57005424. Its totient is φ = 57005422.

The previous prime is 57005411. The next prime is 57005441. The reversal of 57005423 is 32450075.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57005423 - 2⁶ = 57005359 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 57005392 and 57005401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57005323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28502711 + 28502712.

It is an arithmetic number, because the mean of its divisors is an integer number (28502712).

Almost surely, 2^57005423 is an apocalyptic number.

57005423 is a deficient number, since it is larger than the sum of its proper divisors (1).

57005423 is an equidigital number, since it uses as much as digits as its factorization.

57005423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 57005423 is about 7550.1935736774. The cubic root of 57005423 is about 384.8623176656.

Adding to 57005423 its reverse (32450075), we get a palindrome (89455498).

The spelling of 57005423 in words is "fifty-seven million, five thousand, four hundred twenty-three".