53093218 has 8 divisors (see below), whose sum is σ = 81492048. Its totient is φ = 25929204.

The previous prime is 53093213. The next prime is 53093219. The reversal of 53093218 is 81239035.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 53093218.

It is not an unprimeable number, because it can be changed into a prime (53093213) by changing a digit.

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, 308596 + ... + 308767.

It is an arithmetic number, because the mean of its divisors is an integer number (10186506).

Almost surely, 2^53093218 is an apocalyptic number.

53093218 is a deficient number, since it is larger than the sum of its proper divisors (28398830).

53093218 is a wasteful number, since it uses less digits than its factorization.

53093218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617408.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 53093218 is about 7286.5093151659. The cubic root of 53093218 is about 375.8486687296.

The spelling of 53093218 in words is "fifty-three million, ninety-three thousand, two hundred eighteen".