55201228 has 6 divisors (see below), whose sum is σ = 96602156. Its totient is φ = 27600612.

The previous prime is 55201189. The next prime is 55201229. The reversal of 55201228 is 82210255.

55201228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55201229) 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, 6900150 + ... + 6900157.

Almost surely, 2^55201228 is an apocalyptic number.

It is an amenable number.

55201228 is a deficient number, since it is larger than the sum of its proper divisors (41400928).

55201228 is a wasteful number, since it uses less digits than its factorization.

55201228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13800311 (or 13800309 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 55201228 is about 7429.7528895650. The cubic root of 55201228 is about 380.7584758496.

The spelling of 55201228 in words is "fifty-five million, two hundred one thousand, two hundred twenty-eight".