57312163 has 4 divisors (see below), whose sum is σ = 58645048. Its totient is φ = 55979280.

The previous prime is 57312161. The next prime is 57312191. The reversal of 57312163 is 36121375.

57312163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 57312163 - 2¹ = 57312161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57312161) 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 in 3 ways as a sum of consecutive naturals, for example, 666378 + ... + 666463.

It is an arithmetic number, because the mean of its divisors is an integer number (14661262).

Almost surely, 2^57312163 is an apocalyptic number.

57312163 is a deficient number, since it is larger than the sum of its proper divisors (1332885).

57312163 is a wasteful number, since it uses less digits than its factorization.

57312163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332884.

The product of its digits is 3780, while the sum is 28.

The square root of 57312163 is about 7570.4797073898. The cubic root of 57312163 is about 385.5513840092.

It can be divided in two parts, 57312 and 163, that added together give a palindrome (57475).

The spelling of 57312163 in words is "fifty-seven million, three hundred twelve thousand, one hundred sixty-three".