57916013 has 2 divisors, whose sum is σ = 57916014. Its totient is φ = 57916012.

The previous prime is 57916007. The next prime is 57916021. The reversal of 57916013 is 31061975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43270084 + 14645929 = 6578^2 + 3827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57916013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57916043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28958006 + 28958007.

It is an arithmetic number, because the mean of its divisors is an integer number (28958007).

Almost surely, 2^57916013 is an apocalyptic number.

It is an amenable number.

57916013 is a deficient number, since it is larger than the sum of its proper divisors (1).

57916013 is an equidigital number, since it uses as much as digits as its factorization.

57916013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 57916013 is about 7610.2570915837. The cubic root of 57916013 is about 386.9007328186.

Adding to 57916013 its reverse (31061975), we get a palindrome (88977988).

The spelling of 57916013 in words is "fifty-seven million, nine hundred sixteen thousand, thirteen".