53905218 has 32 divisors (see below), whose sum is σ = 111739392. Its totient is φ = 17318400.

The previous prime is 53905217. The next prime is 53905279. The reversal of 53905218 is 81250935.

It is not an unprimeable number, because it can be changed into a prime (53905217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65248 + ... + 66068.

It is an arithmetic number, because the mean of its divisors is an integer number (3491856).

Almost surely, 2^53905218 is an apocalyptic number.

53905218 is an abundant number, since it is smaller than the sum of its proper divisors (57834174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53905218 is a wasteful number, since it uses less digits than its factorization.

53905218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 53905218 is about 7342.0172977187. The cubic root of 53905218 is about 377.7550413139.

The spelling of 53905218 in words is "fifty-three million, nine hundred five thousand, two hundred eighteen".