56140228 has 6 divisors (see below), whose sum is σ = 98245406. Its totient is φ = 28070112.

The previous prime is 56140207. The next prime is 56140229. The reversal of 56140228 is 82204165.

It can be written as a sum of positive squares in only one way, i.e., 44729344 + 11410884 = 6688^2 + 3378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56140196 and 56140205.

It is not an unprimeable number, because it can be changed into a prime (56140229) by changing a digit.

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 as a sum of consecutive naturals, namely, 7017525 + ... + 7017532.

Almost surely, 2^56140228 is an apocalyptic number.

It is an amenable number.

56140228 is a deficient number, since it is larger than the sum of its proper divisors (42105178).

56140228 is a wasteful number, since it uses less digits than its factorization.

56140228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14035061 (or 14035059 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 56140228 is about 7492.6782928403. The cubic root of 56140228 is about 382.9053114617.

The spelling of 56140228 in words is "fifty-six million, one hundred forty thousand, two hundred twenty-eight".