652646564 has 24 divisors (see below), whose sum is σ = 1162409976. Its totient is φ = 320544000.

The previous prime is 652646549. The next prime is 652646587. The reversal of 652646564 is 465646256.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27646564 + 625000000 = 5258^2 + 25000^2 .

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, 257624 + ... + 260144.

It is an arithmetic number, because the mean of its divisors is an integer number (48433749).

Almost surely, 2^652646564 is an apocalyptic number.

It is an amenable number.

652646564 is a deficient number, since it is larger than the sum of its proper divisors (509763412).

652646564 is a wasteful number, since it uses less digits than its factorization.

652646564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647 (or 3645 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 44.

The square root of 652646564 is about 25546.9482326167. The cubic root of 652646564 is about 867.4131836814.

The spelling of 652646564 in words is "six hundred fifty-two million, six hundred forty-six thousand, five hundred sixty-four".