53564564 has 12 divisors (see below), whose sum is σ = 94705044. Its totient is φ = 26505984.

The previous prime is 53564519. The next prime is 53564579. The reversal of 53564564 is 46546535.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37724164 + 15840400 = 6142^2 + 3980^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68639 + ... + 69414.

It is an arithmetic number, because the mean of its divisors is an integer number (7892087).

Almost surely, 2^53564564 is an apocalyptic number.

It is an amenable number.

53564564 is a deficient number, since it is larger than the sum of its proper divisors (41140480).

53564564 is a wasteful number, since it uses less digits than its factorization.

53564564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138154 (or 138152 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

The square root of 53564564 is about 7318.7815925877. The cubic root of 53564564 is about 376.9576182401.

The spelling of 53564564 in words is "fifty-three million, five hundred sixty-four thousand, five hundred sixty-four".