57384581 has 2 divisors, whose sum is σ = 57384582. Its totient is φ = 57384580.

The previous prime is 57384577. The next prime is 57384583. The reversal of 57384581 is 18548375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43020481 + 14364100 = 6559^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 57384581 - 2² = 57384577 is a prime.

It is a super-2 number, since 2×57384581² = 6585980273091122, which contains 22 as substring.

Together with 57384583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57384583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28692290 + 28692291.

It is an arithmetic number, because the mean of its divisors is an integer number (28692291).

Almost surely, 2^57384581 is an apocalyptic number.

It is an amenable number.

57384581 is a deficient number, since it is larger than the sum of its proper divisors (1).

57384581 is an equidigital number, since it uses as much as digits as its factorization.

57384581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134400, while the sum is 41.

The square root of 57384581 is about 7575.2611176117. The cubic root of 57384581 is about 385.7137062046.

The spelling of 57384581 in words is "fifty-seven million, three hundred eighty-four thousand, five hundred eighty-one".