53221100 has 36 divisors (see below), whose sum is σ = 118185144. Its totient is φ = 20791680.

The previous prime is 53221093. The next prime is 53221111. The reversal of 53221100 is 112235.

It is a happy number.

53221100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1889 + ... + 10488.

Almost surely, 2^53221100 is an apocalyptic number.

53221100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53221100 is an abundant number, since it is smaller than the sum of its proper divisors (64964044).

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

53221100 is a wasteful number, since it uses less digits than its factorization.

53221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12434 (or 12427 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 53221100 is about 7295.2792955445. The cubic root of 53221100 is about 376.1501870974.

Adding to 53221100 its reverse (112235), we get a palindrome (53333335).

The spelling of 53221100 in words is "fifty-three million, two hundred twenty-one thousand, one hundred".