27552228 has 24 divisors (see below), whose sum is σ = 70133280. Its totient is φ = 8349120.

The previous prime is 27552227. The next prime is 27552241. The reversal of 27552228 is 82225572.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27552227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104233 + ... + 104496.

It is an arithmetic number, because the mean of its divisors is an integer number (2922220).

Almost surely, 2^27552228 is an apocalyptic number.

It is an amenable number.

27552228 is an abundant number, since it is smaller than the sum of its proper divisors (42581052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27552228 is a wasteful number, since it uses less digits than its factorization.

27552228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208747 (or 208745 counting only the distinct ones).

The product of its digits is 22400, while the sum is 33.

The square root of 27552228 is about 5249.0216231218. The cubic root of 27552228 is about 302.0315011802.

It can be divided in two parts, 27 and 552228, that added together give a palindrome (552255).

The spelling of 27552228 in words is "twenty-seven million, five hundred fifty-two thousand, two hundred twenty-eight".