56776847 has 4 divisors (see below), whose sum is σ = 57339096. Its totient is φ = 56214600.

The previous prime is 56776843. The next prime is 56776849. The reversal of 56776847 is 74867765.

56776847 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.

It is a cyclic number.

It is not a de Polignac number, because 56776847 - 2² = 56776843 is a prime.

It is a super-2 number, since 2×56776847² = 6447220710522818, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56776795 and 56776804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56776843) 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, 280973 + ... + 281174.

It is an arithmetic number, because the mean of its divisors is an integer number (14334774).

Almost surely, 2^56776847 is an apocalyptic number.

56776847 is a deficient number, since it is larger than the sum of its proper divisors (562249).

56776847 is a wasteful number, since it uses less digits than its factorization.

56776847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562248.

The product of its digits is 1975680, while the sum is 50.

The square root of 56776847 is about 7535.0412739414. The cubic root of 56776847 is about 384.3472314044.

The spelling of 56776847 in words is "fifty-six million, seven hundred seventy-six thousand, eight hundred forty-seven".