56683778 has 16 divisors (see below), whose sum is σ = 88810560. Its totient is φ = 27106416.

The previous prime is 56683769. The next prime is 56683801. The reversal of 56683778 is 87738665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126 + ... + 10857.

It is an arithmetic number, because the mean of its divisors is an integer number (5550660).

Almost surely, 2^56683778 is an apocalyptic number.

56683778 is a deficient number, since it is larger than the sum of its proper divisors (32126782).

56683778 is a wasteful number, since it uses less digits than its factorization.

56683778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13081.

The product of its digits is 1693440, while the sum is 50.

The square root of 56683778 is about 7528.8629951673. The cubic root of 56683778 is about 384.1371083381.

The spelling of 56683778 in words is "fifty-six million, six hundred eighty-three thousand, seven hundred seventy-eight".