56686228 has 24 divisors (see below), whose sum is σ = 108428544. Its totient is φ = 25814400.

The previous prime is 56686219. The next prime is 56686229. The reversal of 56686228 is 82268665.

56686228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56686229) 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, 11338 + ... + 15553.

It is an arithmetic number, because the mean of its divisors is an integer number (4517856).

Almost surely, 2^56686228 is an apocalyptic number.

It is an amenable number.

56686228 is a deficient number, since it is larger than the sum of its proper divisors (51742316).

56686228 is a wasteful number, since it uses less digits than its factorization.

56686228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26943 (or 26941 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 56686228 is about 7529.0257005804. The cubic root of 56686228 is about 384.1426426808.

The spelling of 56686228 in words is "fifty-six million, six hundred eighty-six thousand, two hundred twenty-eight".