63368521 has 2 divisors, whose sum is σ = 63368522. Its totient is φ = 63368520.

The previous prime is 63368483. The next prime is 63368561. The reversal of 63368521 is 12586336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38007225 + 25361296 = 6165^2 + 5036^2 .

It is a cyclic number.

It is not a de Polignac number, because 63368521 - 2²¹ = 61271369 is a prime.

It is not a weakly prime, because it can be changed into another prime (63368561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31684260 + 31684261.

It is an arithmetic number, because the mean of its divisors is an integer number (31684261).

Almost surely, 2^63368521 is an apocalyptic number.

It is an amenable number.

63368521 is a deficient number, since it is larger than the sum of its proper divisors (1).

63368521 is an equidigital number, since it uses as much as digits as its factorization.

63368521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 63368521 is about 7960.4347243100. The cubic root of 63368521 is about 398.6800679896.

The spelling of 63368521 in words is "sixty-three million, three hundred sixty-eight thousand, five hundred twenty-one".