63206513 has 2 divisors, whose sum is σ = 63206514. Its totient is φ = 63206512.

The previous prime is 63206509. The next prime is 63206531. The reversal of 63206513 is 31560236.

63206513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (63206531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37063744 + 26142769 = 6088^2 + 5113^2 .

It is a cyclic number.

It is not a de Polignac number, because 63206513 - 2² = 63206509 is a prime.

It is not a weakly prime, because it can be changed into another prime (63206713) 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, 31603256 + 31603257.

It is an arithmetic number, because the mean of its divisors is an integer number (31603257).

Almost surely, 2^63206513 is an apocalyptic number.

It is an amenable number.

63206513 is a deficient number, since it is larger than the sum of its proper divisors (1).

63206513 is an equidigital number, since it uses as much as digits as its factorization.

63206513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 63206513 is about 7950.2523859309. The cubic root of 63206513 is about 398.3400228020.

Adding to 63206513 its reverse (31560236), we get a palindrome (94766749).

The spelling of 63206513 in words is "sixty-three million, two hundred six thousand, five hundred thirteen".