57331423 has 2 divisors, whose sum is σ = 57331424. Its totient is φ = 57331422.

The previous prime is 57331411. The next prime is 57331447. The reversal of 57331423 is 32413375.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57331423 - 2²¹ = 55234271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57331391 and 57331400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57331723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28665711 + 28665712.

It is an arithmetic number, because the mean of its divisors is an integer number (28665712).

Almost surely, 2^57331423 is an apocalyptic number.

57331423 is a deficient number, since it is larger than the sum of its proper divisors (1).

57331423 is an equidigital number, since it uses as much as digits as its factorization.

57331423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 28.

The square root of 57331423 is about 7571.7516467459. The cubic root of 57331423 is about 385.5945679083.

Adding to 57331423 its reverse (32413375), we get a palindrome (89744798).

The spelling of 57331423 in words is "fifty-seven million, three hundred thirty-one thousand, four hundred twenty-three".