65227272 has 32 divisors (see below), whose sum is σ = 177893280. Its totient is φ = 19765760.

The previous prime is 65227237. The next prime is 65227301. The reversal of 65227272 is 27272256.

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

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 7 ways as a sum of consecutive naturals, for example, 123273 + ... + 123800.

It is an arithmetic number, because the mean of its divisors is an integer number (5559165).

Almost surely, 2^65227272 is an apocalyptic number.

It is an amenable number.

65227272 is an abundant number, since it is smaller than the sum of its proper divisors (112666008).

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

65227272 is a wasteful number, since it uses less digits than its factorization.

65227272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247093 (or 247089 counting only the distinct ones).

The product of its digits is 23520, while the sum is 33.

The square root of 65227272 is about 8076.3402602912. The cubic root of 65227272 is about 402.5406453045.

The spelling of 65227272 in words is "sixty-five million, two hundred twenty-seven thousand, two hundred seventy-two".