53281116 has 36 divisors (see below), whose sum is σ = 153923952. Its totient is φ = 15223104.

The previous prime is 53281093. The next prime is 53281117. The reversal of 53281116 is 61118235.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 53281116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53281117) 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 11 ways as a sum of consecutive naturals, for example, 105465 + ... + 105968.

Almost surely, 2^53281116 is an apocalyptic number.

It is an amenable number.

53281116 is an abundant number, since it is smaller than the sum of its proper divisors (100642836).

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

53281116 is a wasteful number, since it uses less digits than its factorization.

53281116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211450 (or 211445 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 53281116 is about 7299.3914814867. The cubic root of 53281116 is about 376.2915254588.

The spelling of 53281116 in words is "fifty-three million, two hundred eighty-one thousand, one hundred sixteen".