63808265 has 16 divisors (see below), whose sum is σ = 80012880. Its totient is φ = 48787200.

The previous prime is 63808243. The next prime is 63808267. The reversal of 63808265 is 56280836.

63808265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 21049744 + 42758521 = 4588^2 + 6539^2 .

It is not a de Polignac number, because 63808265 - 2⁸ = 63808009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63808267) 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 in 15 ways as a sum of consecutive naturals, for example, 12467 + ... + 16823.

It is an arithmetic number, because the mean of its divisors is an integer number (5000805).

Almost surely, 2^63808265 is an apocalyptic number.

It is an amenable number.

63808265 is a deficient number, since it is larger than the sum of its proper divisors (16204615).

63808265 is a wasteful number, since it uses less digits than its factorization.

63808265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 63808265 is about 7988.0075738572. The cubic root of 63808265 is about 399.6001525215.

The spelling of 63808265 in words is "sixty-three million, eight hundred eight thousand, two hundred sixty-five".