56573530 has 16 divisors (see below), whose sum is σ = 109665864. Its totient is φ = 20888640.

The previous prime is 56573521. The next prime is 56573533. The reversal of 56573530 is 3537565.

It can be written as a sum of positive squares in 4 ways, for example, as 51251281 + 5322249 = 7159^2 + 2307^2 .

It is not an unprimeable number, because it can be changed into a prime (56573533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217461 + ... + 217720.

Almost surely, 2^56573530 is an apocalyptic number.

56573530 is a deficient number, since it is larger than the sum of its proper divisors (53092334).

56573530 is a wasteful number, since it uses less digits than its factorization.

56573530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435201.

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 56573530 is about 7521.5377417121. The cubic root of 56573530 is about 383.8879022115.

The spelling of 56573530 in words is "fifty-six million, five hundred seventy-three thousand, five hundred thirty".