56573784 has 48 divisors (see below), whose sum is σ = 153709920. Its totient is φ = 18797760.

The previous prime is 56573771. The next prime is 56573819. The reversal of 56573784 is 48737565.

56573784 is a `hidden beast` number, since 5 + 6 + 573 + 78 + 4 = 666.

Its product of digits (705600) is a multiple of the sum of its prime factors (2520).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 25354 + ... + 27494.

It is an arithmetic number, because the mean of its divisors is an integer number (3202290).

Almost surely, 2^56573784 is an apocalyptic number.

It is an amenable number.

56573784 is an abundant number, since it is smaller than the sum of its proper divisors (97136136).

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

56573784 is a wasteful number, since it uses less digits than its factorization.

56573784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520 (or 2513 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 56573784 is about 7521.5546265383. The cubic root of 56573784 is about 383.8884767286. Note that the first 3 decimals are identical.

The spelling of 56573784 in words is "fifty-six million, five hundred seventy-three thousand, seven hundred eighty-four".