53066218 has 24 divisors (see below), whose sum is σ = 83689956. Its totient is φ = 25214400.

The previous prime is 53066191. The next prime is 53066219. The reversal of 53066218 is 81266035.

It can be written as a sum of positive squares in 2 ways, for example, as 36929929 + 16136289 = 6077^2 + 4017^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53066218.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53066219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515155 + ... + 515257.

Almost surely, 2^53066218 is an apocalyptic number.

53066218 is a deficient number, since it is larger than the sum of its proper divisors (30623738).

53066218 is a wasteful number, since it uses less digits than its factorization.

53066218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 53066218 is about 7284.6563405558. The cubic root of 53066218 is about 375.7849466252.

The spelling of 53066218 in words is "fifty-three million, sixty-six thousand, two hundred eighteen".