201550228 has 48 divisors (see below), whose sum is σ = 392736960. Its totient is φ = 89740800.

The previous prime is 201550213. The next prime is 201550243. The reversal of 201550228 is 822055102.

201550228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201550213) and next prime (201550243).

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 15 ways as a sum of consecutive naturals, for example, 836188 + ... + 836428.

It is an arithmetic number, because the mean of its divisors is an integer number (8182020).

Almost surely, 2^201550228 is an apocalyptic number.

It is an amenable number.

201550228 is a deficient number, since it is larger than the sum of its proper divisors (191186732).

201550228 is a wasteful number, since it uses less digits than its factorization.

201550228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 566 counting only the distinct ones).

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

The square root of 201550228 is about 14196.8386621811. The cubic root of 201550228 is about 586.3106251908.

The spelling of 201550228 in words is "two hundred one million, five hundred fifty thousand, two hundred twenty-eight".