52563645 has 24 divisors (see below), whose sum is σ = 91925496. Its totient is φ = 27783168.

The previous prime is 52563611. The next prime is 52563647. The reversal of 52563645 is 54636525.

It is a happy number.

52563645 is a `hidden beast` number, since 5 + 2 + 5 + 6 + 3 + 645 = 666.

52563645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4372281 + 48191364 = 2091^2 + 6942^2 .

It is not a de Polignac number, because 52563645 - 2⁸ = 52563389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52563647) 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 in 23 ways as a sum of consecutive naturals, for example, 84 + ... + 10253.

It is an arithmetic number, because the mean of its divisors is an integer number (3830229).

Almost surely, 2^52563645 is an apocalyptic number.

It is an amenable number.

52563645 is a deficient number, since it is larger than the sum of its proper divisors (39361851).

52563645 is a wasteful number, since it uses less digits than its factorization.

52563645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461 (or 10458 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 52563645 is about 7250.0789650872. The cubic root of 52563645 is about 374.5948691416.

The spelling of 52563645 in words is "fifty-two million, five hundred sixty-three thousand, six hundred forty-five".