57217423 has 2 divisors, whose sum is σ = 57217424. Its totient is φ = 57217422.

The previous prime is 57217411. The next prime is 57217441. The reversal of 57217423 is 32471275.

57217423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57217423 - 2¹³ = 57209231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57217463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28608711 + 28608712.

It is an arithmetic number, because the mean of its divisors is an integer number (28608712).

Almost surely, 2^57217423 is an apocalyptic number.

57217423 is a deficient number, since it is larger than the sum of its proper divisors (1).

57217423 is an equidigital number, since it uses as much as digits as its factorization.

57217423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 31.

The square root of 57217423 is about 7564.2199201240. The cubic root of 57217423 is about 385.3388213127.

Adding to 57217423 its reverse (32471275), we get a palindrome (89688698).

The spelling of 57217423 in words is "fifty-seven million, two hundred seventeen thousand, four hundred twenty-three".