65624648 has 8 divisors (see below), whose sum is σ = 123046230. Its totient is φ = 32812320.

The previous prime is 65624623. The next prime is 65624677. The reversal of 65624648 is 84642656.

65624648 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 only one way, i.e., 64032004 + 1592644 = 8002^2 + 1262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4101533 + ... + 4101548.

Almost surely, 2^65624648 is an apocalyptic number.

It is an amenable number.

65624648 is a deficient number, since it is larger than the sum of its proper divisors (57421582).

65624648 is a wasteful number, since it uses less digits than its factorization.

65624648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8203087 (or 8203083 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 65624648 is about 8100.9041470690. The cubic root of 65624648 is about 403.3564403279.

The spelling of 65624648 in words is "sixty-five million, six hundred twenty-four thousand, six hundred forty-eight".