56855777 has 4 divisors (see below), whose sum is σ = 62024496. Its totient is φ = 51687060.

The previous prime is 56855753. The next prime is 56855779. The reversal of 56855777 is 77755865.

56855777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56855777 - 2¹² = 56851681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56855779) 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 3 ways as a sum of consecutive naturals, for example, 2584343 + ... + 2584364.

It is an arithmetic number, because the mean of its divisors is an integer number (15506124).

Almost surely, 2^56855777 is an apocalyptic number.

It is an amenable number.

56855777 is a deficient number, since it is larger than the sum of its proper divisors (5168719).

56855777 is a wasteful number, since it uses less digits than its factorization.

56855777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168718.

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

The square root of 56855777 is about 7540.2769843024. The cubic root of 56855777 is about 384.5252527968.

The spelling of 56855777 in words is "fifty-six million, eight hundred fifty-five thousand, seven hundred seventy-seven".