65022272 has 28 divisors (see below), whose sum is σ = 147462240. Its totient is φ = 27866496.

The previous prime is 65022271. The next prime is 65022277. The reversal of 65022272 is 27222056.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65022271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72122 + ... + 73017.

Almost surely, 2^65022272 is an apocalyptic number.

It is an amenable number.

65022272 is an abundant number, since it is smaller than the sum of its proper divisors (82439968).

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

65022272 is a wasteful number, since it uses less digits than its factorization.

65022272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145158 (or 145148 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 65022272 is about 8063.6388808031. The cubic root of 65022272 is about 402.1184934887.

It can be divided in two parts, 650 and 22272, that added together give a palindrome (22922).

The spelling of 65022272 in words is "sixty-five million, twenty-two thousand, two hundred seventy-two".