57544313 has 2 divisors, whose sum is σ = 57544314. Its totient is φ = 57544312.

The previous prime is 57544297. The next prime is 57544343. The reversal of 57544313 is 31344575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30118144 + 27426169 = 5488^2 + 5237^2 .

It is a cyclic number.

It is not a de Polignac number, because 57544313 - 2⁴ = 57544297 is a prime.

It is a super-2 number, since 2×57544313² = 6622695917283938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57544313.

It is not a weakly prime, because it can be changed into another prime (57544343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28772156 + 28772157.

It is an arithmetic number, because the mean of its divisors is an integer number (28772157).

Almost surely, 2^57544313 is an apocalyptic number.

It is an amenable number.

57544313 is a deficient number, since it is larger than the sum of its proper divisors (1).

57544313 is an equidigital number, since it uses as much as digits as its factorization.

57544313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 32.

The square root of 57544313 is about 7585.7967940092. The cubic root of 57544313 is about 386.0712572145.

Adding to 57544313 its reverse (31344575), we get a palindrome (88888888).

The spelling of 57544313 in words is "fifty-seven million, five hundred forty-four thousand, three hundred thirteen".