56807785 has 12 divisors (see below), whose sum is σ = 69605892. Its totient is φ = 44492448.

The previous prime is 56807767. The next prime is 56807789. The reversal of 56807785 is 58770865.

56807785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30869136 + 25938649 = 5556^2 + 5093^2 .

It is not a de Polignac number, because 56807785 - 2¹¹ = 56805737 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56807789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122464 + ... + 122926.

It is an arithmetic number, because the mean of its divisors is an integer number (5800491).

Almost surely, 2^56807785 is an apocalyptic number.

It is an amenable number.

56807785 is a deficient number, since it is larger than the sum of its proper divisors (12798107).

56807785 is an frugal number, since it uses more digits than its factorization.

56807785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 56807785 is about 7537.0939359942. The cubic root of 56807785 is about 384.4170296650.

The spelling of 56807785 in words is "fifty-six million, eight hundred seven thousand, seven hundred eighty-five".