652665588 has 12 divisors (see below), whose sum is σ = 1522886400. Its totient is φ = 217555192.

The previous prime is 652665551. The next prime is 652665589. The reversal of 652665588 is 885566256.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 652665588.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652665589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27194388 + ... + 27194411.

It is an arithmetic number, because the mean of its divisors is an integer number (126907200).

Almost surely, 2^652665588 is an apocalyptic number.

It is an amenable number.

652665588 is an abundant number, since it is smaller than the sum of its proper divisors (870220812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

652665588 is a wasteful number, since it uses less digits than its factorization.

652665588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54388806 (or 54388804 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 51.

The square root of 652665588 is about 25547.3205640044. The cubic root of 652665588 is about 867.4216116775.

The spelling of 652665588 in words is "six hundred fifty-two million, six hundred sixty-five thousand, five hundred eighty-eight".