63385313 has 2 divisors, whose sum is σ = 63385314. Its totient is φ = 63385312.

The previous prime is 63385291. The next prime is 63385331. The reversal of 63385313 is 31358336.

Together with next prime (63385331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59413264 + 3972049 = 7708^2 + 1993^2 .

It is a cyclic number.

It is not a de Polignac number, because 63385313 - 2⁶ = 63385249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63385313.

It is not a weakly prime, because it can be changed into another prime (63385363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31692656 + 31692657.

It is an arithmetic number, because the mean of its divisors is an integer number (31692657).

Almost surely, 2^63385313 is an apocalyptic number.

It is an amenable number.

63385313 is a deficient number, since it is larger than the sum of its proper divisors (1).

63385313 is an equidigital number, since it uses as much as digits as its factorization.

63385313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 63385313 is about 7961.4893707145. The cubic root of 63385313 is about 398.7152802387.

The spelling of 63385313 in words is "sixty-three million, three hundred eighty-five thousand, three hundred thirteen".