65547228 has 12 divisors (see below), whose sum is σ = 152943560. Its totient is φ = 21849072.

The previous prime is 65547199. The next prime is 65547241. The reversal of 65547228 is 82274556.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2731123 + ... + 2731146.

Almost surely, 2^65547228 is an apocalyptic number.

It is an amenable number.

65547228 is an abundant number, since it is smaller than the sum of its proper divisors (87396332).

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

65547228 is a wasteful number, since it uses less digits than its factorization.

65547228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462276 (or 5462274 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 65547228 is about 8096.1242579397. The cubic root of 65547228 is about 403.1977593807.

The spelling of 65547228 in words is "sixty-five million, five hundred forty-seven thousand, two hundred twenty-eight".