53221232 has 10 divisors (see below), whose sum is σ = 103116168. Its totient is φ = 26610608.

The previous prime is 53221187. The next prime is 53221253. The reversal of 53221232 is 23212235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1663148 + ... + 1663179.

Almost surely, 2^53221232 is an apocalyptic number.

It is an amenable number.

53221232 is a deficient number, since it is larger than the sum of its proper divisors (49894936).

53221232 is a wasteful number, since it uses less digits than its factorization.

53221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326335 (or 3326329 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 53221232 is about 7295.2883424852. The cubic root of 53221232 is about 376.1504980755.

Adding to 53221232 its reverse (23212235), we get a palindrome (76433467).

The spelling of 53221232 in words is "fifty-three million, two hundred twenty-one thousand, two hundred thirty-two".