53500218 has 16 divisors (see below), whose sum is σ = 107150880. Its totient is φ = 17808336.

The previous prime is 53500211. The next prime is 53500247. The reversal of 53500218 is 81200535.

It is not an unprimeable number, because it can be changed into a prime (53500211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (6696930).

Almost surely, 2^53500218 is an apocalyptic number.

53500218 is an abundant number, since it is smaller than the sum of its proper divisors (53650662).

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

53500218 is a wasteful number, since it uses less digits than its factorization.

53500218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12541.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 53500218 is about 7314.3843213219. The cubic root of 53500218 is about 376.8066139679.

The spelling of 53500218 in words is "fifty-three million, five hundred thousand, two hundred eighteen".