56573738 has 16 divisors (see below), whose sum is σ = 91535136. Its totient is φ = 26069040.

The previous prime is 56573731. The next prime is 56573749. The reversal of 56573738 is 83737565.

It is not an unprimeable number, because it can be changed into a prime (56573731) 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, 19745 + ... + 22427.

It is an arithmetic number, because the mean of its divisors is an integer number (5720946).

Almost surely, 2^56573738 is an apocalyptic number.

56573738 is a deficient number, since it is larger than the sum of its proper divisors (34961398).

56573738 is a wasteful number, since it uses less digits than its factorization.

56573738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509.

The product of its digits is 529200, while the sum is 44.

The square root of 56573738 is about 7521.5515686592. The cubic root of 56573738 is about 383.8883726823. Note that the first 3 decimals are identical.

The spelling of 56573738 in words is "fifty-six million, five hundred seventy-three thousand, seven hundred thirty-eight".