52640564 has 24 divisors (see below), whose sum is σ = 99039360. Its totient is φ = 24402816.

The previous prime is 52640543. The next prime is 52640587. The reversal of 52640564 is 46504625.

52640564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 52640564.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 3797 + ... + 10940.

It is an arithmetic number, because the mean of its divisors is an integer number (4126640).

Almost surely, 2^52640564 is an apocalyptic number.

It is an amenable number.

52640564 is a deficient number, since it is larger than the sum of its proper divisors (46398796).

52640564 is a wasteful number, since it uses less digits than its factorization.

52640564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14807 (or 14805 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 52640564 is about 7255.3817266909. The cubic root of 52640564 is about 374.7775011960. Note that the first 3 decimals are identical.

The spelling of 52640564 in words is "fifty-two million, six hundred forty thousand, five hundred sixty-four".