57723013 has 2 divisors, whose sum is σ = 57723014. Its totient is φ = 57723012.

The previous prime is 57723011. The next prime is 57723067. The reversal of 57723013 is 31032775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36397089 + 21325924 = 6033^2 + 4618^2 .

It is a cyclic number.

It is not a de Polignac number, because 57723013 - 2¹ = 57723011 is a prime.

Together with 57723011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57723011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28861506 + 28861507.

It is an arithmetic number, because the mean of its divisors is an integer number (28861507).

Almost surely, 2^57723013 is an apocalyptic number.

It is an amenable number.

57723013 is a deficient number, since it is larger than the sum of its proper divisors (1).

57723013 is an equidigital number, since it uses as much as digits as its factorization.

57723013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 57723013 is about 7597.5662550583. The cubic root of 57723013 is about 386.4704836973.

Adding to 57723013 its reverse (31032775), we get a palindrome (88755788).

The spelling of 57723013 in words is "fifty-seven million, seven hundred twenty-three thousand, thirteen".