57840481 has 2 divisors, whose sum is σ = 57840482. Its totient is φ = 57840480.

The previous prime is 57840479. The next prime is 57840487. The reversal of 57840481 is 18404875.

57840481 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 can be written as a sum of positive squares in only one way, i.e., 53363025 + 4477456 = 7305^2 + 2116^2 .

It is a cyclic number.

It is not a de Polignac number, because 57840481 - 2¹ = 57840479 is a prime.

It is a super-2 number, since 2×57840481² = 6691042484622722, which contains 22 as substring.

Together with 57840479, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57840481.

It is not a weakly prime, because it can be changed into another prime (57840487) 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, 28920240 + 28920241.

It is an arithmetic number, because the mean of its divisors is an integer number (28920241).

Almost surely, 2^57840481 is an apocalyptic number.

It is an amenable number.

57840481 is a deficient number, since it is larger than the sum of its proper divisors (1).

57840481 is an equidigital number, since it uses as much as digits as its factorization.

57840481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 57840481 is about 7605.2929595118. The cubic root of 57840481 is about 386.7324655992.

The spelling of 57840481 in words is "fifty-seven million, eight hundred forty thousand, four hundred eighty-one".