56775578 has 8 divisors (see below), whose sum is σ = 85639680. Its totient is φ = 28229020.

The previous prime is 56775559. The next prime is 56775581. The reversal of 56775578 is 87557765.

56775578 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 Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 78938 + ... + 79653.

It is an arithmetic number, because the mean of its divisors is an integer number (10704960).

Almost surely, 2^56775578 is an apocalyptic number.

56775578 is a deficient number, since it is larger than the sum of its proper divisors (28864102).

56775578 is a wasteful number, since it uses less digits than its factorization.

56775578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158772.

The product of its digits is 2058000, while the sum is 50.

The square root of 56775578 is about 7534.9570668983. The cubic root of 56775578 is about 384.3443679116.

The spelling of 56775578 in words is "fifty-six million, seven hundred seventy-five thousand, five hundred seventy-eight".