53145232 has 40 divisors (see below), whose sum is σ = 119117376. Its totient is φ = 22498176.

The previous prime is 53145217. The next prime is 53145251. The reversal of 53145232 is 23254135.

53145232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 53145197 and 53145206.

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 7 ways as a sum of consecutive naturals, for example, 6438 + ... + 12154.

Almost surely, 2^53145232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53145232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59558688).

53145232 is an abundant number, since it is smaller than the sum of its proper divisors (65972144).

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

53145232 is a wasteful number, since it uses less digits than its factorization.

53145232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815 (or 5809 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 53145232 is about 7290.0776401901. The cubic root of 53145232 is about 375.9713649537.

Adding to 53145232 its reverse (23254135), we get a palindrome (76399367).

The spelling of 53145232 in words is "fifty-three million, one hundred forty-five thousand, two hundred thirty-two".