53217232 has 20 divisors (see below), whose sum is σ = 103795936. Its totient is φ = 26431200.

The previous prime is 53217223. The next prime is 53217251. The reversal of 53217232 is 23271235.

It is a junction number, because it is equal to n+sod(n) for n = 53217197 and 53217206.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8598 + ... + 13429.

Almost surely, 2^53217232 is an apocalyptic number.

It is an amenable number.

53217232 is a deficient number, since it is larger than the sum of its proper divisors (50578704).

53217232 is a wasteful number, since it uses less digits than its factorization.

53217232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22186 (or 22180 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 53217232 is about 7295.0141877861. The cubic root of 53217232 is about 376.1410742695.

Adding to 53217232 its reverse (23271235), we get a palindrome (76488467).

The spelling of 53217232 in words is "fifty-three million, two hundred seventeen thousand, two hundred thirty-two".