67057513 has 2 divisors, whose sum is σ = 67057514. Its totient is φ = 67057512.

The previous prime is 67057499. The next prime is 67057519. The reversal of 67057513 is 31575076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64208169 + 2849344 = 8013^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 67057513 - 2²⁵ = 33503081 is a prime.

It is not a weakly prime, because it can be changed into another prime (67057519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33528756 + 33528757.

It is an arithmetic number, because the mean of its divisors is an integer number (33528757).

Almost surely, 2^67057513 is an apocalyptic number.

It is an amenable number.

67057513 is a deficient number, since it is larger than the sum of its proper divisors (1).

67057513 is an equidigital number, since it uses as much as digits as its factorization.

67057513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 67057513 is about 8188.8651838945. The cubic root of 67057513 is about 406.2709916411.

The spelling of 67057513 in words is "sixty-seven million, fifty-seven thousand, five hundred thirteen".