53143232 has 14 divisors (see below), whose sum is σ = 105456228. Its totient is φ = 26571584.

The previous prime is 53143219. The next prime is 53143243. The reversal of 53143232 is 23234135.

It is a junction number, because it is equal to n+sod(n) for n = 53143198 and 53143207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415118 + ... + 415245.

Almost surely, 2^53143232 is an apocalyptic number.

It is an amenable number.

53143232 is a deficient number, since it is larger than the sum of its proper divisors (52312996).

53143232 is an equidigital number, since it uses as much as digits as its factorization.

53143232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830375 (or 830365 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 53143232 is about 7289.9404661492. The cubic root of 53143232 is about 375.9666486187.

Adding to 53143232 its reverse (23234135), we get a palindrome (76377367).

The spelling of 53143232 in words is "fifty-three million, one hundred forty-three thousand, two hundred thirty-two".