652806568 has 8 divisors (see below), whose sum is σ = 1224012330. Its totient is φ = 326403280.

The previous prime is 652806533. The next prime is 652806569. The reversal of 652806568 is 865608256.

It can be written as a sum of positive squares in only one way, i.e., 452923524 + 199883044 = 21282^2 + 14138^2 .

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

It is not an unprimeable number, because it can be changed into a prime (652806569) 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 as a sum of consecutive naturals, namely, 40800403 + ... + 40800418.

Almost surely, 2^652806568 is an apocalyptic number.

It is an amenable number.

652806568 is a deficient number, since it is larger than the sum of its proper divisors (571205762).

652806568 is a wasteful number, since it uses less digits than its factorization.

652806568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81600827 (or 81600823 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 652806568 is about 25550.0796084865. The cubic root of 652806568 is about 867.4840634123.

The spelling of 652806568 in words is "six hundred fifty-two million, eight hundred six thousand, five hundred sixty-eight".