56724132 has 24 divisors (see below), whose sum is σ = 132765472. Its totient is φ = 18849600.

The previous prime is 56724119. The next prime is 56724149. The reversal of 56724132 is 23142765.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 56724132.

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 7 ways as a sum of consecutive naturals, for example, 3169 + ... + 11112.

Almost surely, 2^56724132 is an apocalyptic number.

It is an amenable number.

56724132 is an abundant number, since it is smaller than the sum of its proper divisors (76041340).

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

56724132 is a wasteful number, since it uses less digits than its factorization.

56724132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14619 (or 14617 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 56724132 is about 7531.5424714994. The cubic root of 56724132 is about 384.2282442992.

Adding to 56724132 its reverse (23142765), we get a palindrome (79866897).

The spelling of 56724132 in words is "fifty-six million, seven hundred twenty-four thousand, one hundred thirty-two".