53318564 has 24 divisors (see below), whose sum is σ = 100774968. Its totient is φ = 24537600.

The previous prime is 53318557. The next prime is 53318569. The reversal of 53318564 is 46581335.

53318564 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 12460900 + 40857664 = 3530^2 + 6392^2 .

It is not an unprimeable number, because it can be changed into a prime (53318569) 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 7 ways as a sum of consecutive naturals, for example, 19574 + ... + 22130.

It is an arithmetic number, because the mean of its divisors is an integer number (4198957).

Almost surely, 2^53318564 is an apocalyptic number.

It is an amenable number.

53318564 is a deficient number, since it is larger than the sum of its proper divisors (47456404).

53318564 is a wasteful number, since it uses less digits than its factorization.

53318564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975 (or 2973 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 53318564 is about 7301.9561762585. The cubic root of 53318564 is about 376.3796621576.

Adding to 53318564 its reverse (46581335), we get a palindrome (99899899).

The spelling of 53318564 in words is "fifty-three million, three hundred eighteen thousand, five hundred sixty-four".