55678228 has 12 divisors (see below), whose sum is σ = 97627572. Its totient is φ = 27784640.

The previous prime is 55678211. The next prime is 55678237. The reversal of 55678228 is 82287655.

It can be written as a sum of positive squares in 2 ways, for example, as 13454224 + 42224004 = 3668^2 + 6498^2 .

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 3 ways as a sum of consecutive naturals, for example, 11275 + ... + 15442.

It is an arithmetic number, because the mean of its divisors is an integer number (8135631).

Almost surely, 2^55678228 is an apocalyptic number.

It is an amenable number.

55678228 is a deficient number, since it is larger than the sum of its proper divisors (41949344).

55678228 is a wasteful number, since it uses less digits than its factorization.

55678228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27242 (or 27240 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 55678228 is about 7461.7845050631. The cubic root of 55678228 is about 381.8520575111.

The spelling of 55678228 in words is "fifty-five million, six hundred seventy-eight thousand, two hundred twenty-eight".