56771228 has 24 divisors (see below), whose sum is σ = 105480144. Its totient is φ = 26643200.

The previous prime is 56771219. The next prime is 56771237. The reversal of 56771228 is 82217765.

It is an interprime number because it is at equal distance from previous prime (56771219) and next prime (56771237).

It is a junction number, because it is equal to n+sod(n) for n = 56771191 and 56771200.

It is a congruent number.

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, 30443 + ... + 32253.

It is an arithmetic number, because the mean of its divisors is an integer number (4395006).

Almost surely, 2^56771228 is an apocalyptic number.

It is an amenable number.

56771228 is a deficient number, since it is larger than the sum of its proper divisors (48708916).

56771228 is a wasteful number, since it uses less digits than its factorization.

56771228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293 (or 2291 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 56771228 is about 7534.6684067715. The cubic root of 56771228 is about 384.3345518325.

The spelling of 56771228 in words is "fifty-six million, seven hundred seventy-one thousand, two hundred twenty-eight".