56505732 has 12 divisors (see below), whose sum is σ = 131846736. Its totient is φ = 18835240.

The previous prime is 56505731. The next prime is 56505767. The reversal of 56505732 is 23750565.

56505732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 56505693 and 56505702.

It is not an unprimeable number, because it can be changed into a prime (56505731) 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 3 ways as a sum of consecutive naturals, for example, 2354394 + ... + 2354417.

It is an arithmetic number, because the mean of its divisors is an integer number (10987228).

Almost surely, 2^56505732 is an apocalyptic number.

It is an amenable number.

56505732 is an abundant number, since it is smaller than the sum of its proper divisors (75341004).

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

56505732 is a wasteful number, since it uses less digits than its factorization.

56505732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708818 (or 4708816 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 56505732 is about 7517.0294664847. The cubic root of 56505732 is about 383.7344898540.

The spelling of 56505732 in words is "fifty-six million, five hundred five thousand, seven hundred thirty-two".