53057732 has 48 divisors (see below), whose sum is σ = 115944192. Its totient is φ = 20684160.

The previous prime is 53057723. The next prime is 53057749. The reversal of 53057732 is 23775035.

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 15 ways as a sum of consecutive naturals, for example, 24818 + ... + 26870.

It is an arithmetic number, because the mean of its divisors is an integer number (2415504).

Almost surely, 2^53057732 is an apocalyptic number.

53057732 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53057732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57972096).

53057732 is an abundant number, since it is smaller than the sum of its proper divisors (62886460).

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

53057732 is a wasteful number, since it uses less digits than its factorization.

53057732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 32.

The square root of 53057732 is about 7284.0738601417. The cubic root of 53057732 is about 375.7649145397.

The spelling of 53057732 in words is "fifty-three million, fifty-seven thousand, seven hundred thirty-two".