65628305 has 16 divisors (see below), whose sum is σ = 81734400. Its totient is φ = 50527680.

The previous prime is 65628301. The next prime is 65628307. The reversal of 65628305 is 50382656.

65628305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65628305 - 2² = 65628301 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65628301) 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, 63140 + ... + 64170.

It is an arithmetic number, because the mean of its divisors is an integer number (5108400).

Almost surely, 2^65628305 is an apocalyptic number.

It is an amenable number.

65628305 is a deficient number, since it is larger than the sum of its proper divisors (16106095).

65628305 is a wasteful number, since it uses less digits than its factorization.

65628305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 65628305 is about 8101.1298594702. The cubic root of 65628305 is about 403.3639326708.

The spelling of 65628305 in words is "sixty-five million, six hundred twenty-eight thousand, three hundred five".