57328013 has 2 divisors, whose sum is σ = 57328014. Its totient is φ = 57328012.

The previous prime is 57328003. The next prime is 57328043. The reversal of 57328013 is 31082375.

57328013 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., 55026724 + 2301289 = 7418^2 + 1517^2 .

It is a cyclic number.

It is not a de Polignac number, because 57328013 - 2¹⁰ = 57326989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57328003) 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, 28664006 + 28664007.

It is an arithmetic number, because the mean of its divisors is an integer number (28664007).

Almost surely, 2^57328013 is an apocalyptic number.

It is an amenable number.

57328013 is a deficient number, since it is larger than the sum of its proper divisors (1).

57328013 is an equidigital number, since it uses as much as digits as its factorization.

57328013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 57328013 is about 7571.5264643267. The cubic root of 57328013 is about 385.5869228655.

The spelling of 57328013 in words is "fifty-seven million, three hundred twenty-eight thousand, thirteen".