56708561 has 8 divisors (see below), whose sum is σ = 69795264. Its totient is φ = 44868240.

The previous prime is 56708551. The next prime is 56708563. The reversal of 56708561 is 16580765.

It is a happy number.

56708561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56708561 - 2⁶ = 56708497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56708563) 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 7 ways as a sum of consecutive naturals, for example, 311495 + ... + 311676.

It is an arithmetic number, because the mean of its divisors is an integer number (8724408).

Almost surely, 2^56708561 is an apocalyptic number.

It is an amenable number.

56708561 is a deficient number, since it is larger than the sum of its proper divisors (13086703).

56708561 is a wasteful number, since it uses less digits than its factorization.

56708561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623191.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 56708561 is about 7530.5086813575. The cubic root of 56708561 is about 384.1930836876.

The spelling of 56708561 in words is "fifty-six million, seven hundred eight thousand, five hundred sixty-one".