63350821 has 2 divisors, whose sum is σ = 63350822. Its totient is φ = 63350820.

The previous prime is 63350813. The next prime is 63350843. The reversal of 63350821 is 12805336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56460196 + 6890625 = 7514^2 + 2625^2 .

It is a cyclic number.

It is not a de Polignac number, because 63350821 - 2³ = 63350813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63350821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63350321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31675410 + 31675411.

It is an arithmetic number, because the mean of its divisors is an integer number (31675411).

Almost surely, 2^63350821 is an apocalyptic number.

It is an amenable number.

63350821 is a deficient number, since it is larger than the sum of its proper divisors (1).

63350821 is an equidigital number, since it uses as much as digits as its factorization.

63350821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 63350821 is about 7959.3228983375. The cubic root of 63350821 is about 398.6429449606.

The spelling of 63350821 in words is "sixty-three million, three hundred fifty thousand, eight hundred twenty-one".