53405232 has 40 divisors (see below), whose sum is σ = 138681600. Its totient is φ = 17709120.

The previous prime is 53405201. The next prime is 53405239. The reversal of 53405232 is 23250435.

53405232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (53405239) by changing a digit.

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, 6757 + ... + 12347.

It is an arithmetic number, because the mean of its divisors is an integer number (3467040).

Almost surely, 2^53405232 is an apocalyptic number.

It is an amenable number.

53405232 is an abundant number, since it is smaller than the sum of its proper divisors (85276368).

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

53405232 is a wasteful number, since it uses less digits than its factorization.

53405232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801 (or 5795 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53405232 is about 7307.8883406905. Note that the first 3 decimals coincide. The cubic root of 53405232 is about 376.5834836892.

Adding to 53405232 its reverse (23250435), we get a palindrome (76655667).

The spelling of 53405232 in words is "fifty-three million, four hundred five thousand, two hundred thirty-two".