38566513 has 2 divisors, whose sum is σ = 38566514. Its totient is φ = 38566512.

The previous prime is 38566501. The next prime is 38566553. The reversal of 38566513 is 31566583.

38566513 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., 34433424 + 4133089 = 5868^2 + 2033^2 .

It is a cyclic number.

It is not a de Polignac number, because 38566513 - 2⁵ = 38566481 is a prime.

It is not a weakly prime, because it can be changed into another prime (38566553) 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, 19283256 + 19283257.

It is an arithmetic number, because the mean of its divisors is an integer number (19283257).

Almost surely, 2^38566513 is an apocalyptic number.

It is an amenable number.

38566513 is a deficient number, since it is larger than the sum of its proper divisors (1).

38566513 is an equidigital number, since it uses as much as digits as its factorization.

38566513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 38566513 is about 6210.1942803748. The cubic root of 38566513 is about 337.8600105369.

The spelling of 38566513 in words is "thirty-eight million, five hundred sixty-six thousand, five hundred thirteen".