56544428 has 12 divisors (see below), whose sum is σ = 100820160. Its totient is φ = 27738672.

The previous prime is 56544407. The next prime is 56544463. The reversal of 56544428 is 82444565.

It is a junction number, because it is equal to n+sod(n) for n = 56544391 and 56544400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133148 + ... + 133571.

It is an arithmetic number, because the mean of its divisors is an integer number (8401680).

Almost surely, 2^56544428 is an apocalyptic number.

It is an amenable number.

56544428 is a deficient number, since it is larger than the sum of its proper divisors (44275732).

56544428 is a wasteful number, since it uses less digits than its factorization.

56544428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266776 (or 266774 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 56544428 is about 7519.6029150481. The cubic root of 56544428 is about 383.8220656390.

The spelling of 56544428 in words is "fifty-six million, five hundred forty-four thousand, four hundred twenty-eight".