56216228 has 6 divisors (see below), whose sum is σ = 98378406. Its totient is φ = 28108112.

The previous prime is 56216221. The next prime is 56216249. The reversal of 56216228 is 82261265.

56216228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32809984 + 23406244 = 5728^2 + 4838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56216194 and 56216203.

It is not an unprimeable number, because it can be changed into a prime (56216221) 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 as a sum of consecutive naturals, namely, 7027025 + ... + 7027032.

It is an arithmetic number, because the mean of its divisors is an integer number (16396401).

Almost surely, 2^56216228 is an apocalyptic number.

It is an amenable number.

56216228 is a deficient number, since it is larger than the sum of its proper divisors (42162178).

56216228 is a wasteful number, since it uses less digits than its factorization.

56216228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14054061 (or 14054059 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 56216228 is about 7497.7481952917. The cubic root of 56216228 is about 383.0780199502.

The spelling of 56216228 in words is "fifty-six million, two hundred sixteen thousand, two hundred twenty-eight".