652561636 has 24 divisors (see below), whose sum is σ = 1179295040. Its totient is φ = 315760032.

The previous prime is 652561619. The next prime is 652561661. The reversal of 652561636 is 636165256.

It is a happy number.

652561636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345 + ... + 36151.

Almost surely, 2^652561636 is an apocalyptic number.

It is an amenable number.

652561636 is a deficient number, since it is larger than the sum of its proper divisors (526733404).

652561636 is a wasteful number, since it uses less digits than its factorization.

652561636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34963 (or 34961 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 652561636 is about 25545.2859839149. The cubic root of 652561636 is about 867.3755569542.

The spelling of 652561636 in words is "six hundred fifty-two million, five hundred sixty-one thousand, six hundred thirty-six".