56544820 has 12 divisors (see below), whose sum is σ = 118744164. Its totient is φ = 22617920.

The previous prime is 56544811. The next prime is 56544821. The reversal of 56544820 is 2844565.

It can be written as a sum of positive squares in 2 ways, for example, as 33849124 + 22695696 = 5818^2 + 4764^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56544821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1413601 + ... + 1413640.

It is an arithmetic number, because the mean of its divisors is an integer number (9895347).

Almost surely, 2^56544820 is an apocalyptic number.

It is an amenable number.

56544820 is an abundant number, since it is smaller than the sum of its proper divisors (62199344).

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

56544820 is a wasteful number, since it uses less digits than its factorization.

56544820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827250 (or 2827248 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 56544820 is about 7519.6289802091. The cubic root of 56544820 is about 383.8229525988.

The spelling of 56544820 in words is "fifty-six million, five hundred forty-four thousand, eight hundred twenty".