65265228 has 144 divisors (see below), whose sum is σ = 203723520. Its totient is φ = 17200512.

The previous prime is 65265217. The next prime is 65265241. The reversal of 65265228 is 82256256.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 65265192 and 65265201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205726 + ... + 206042.

Almost surely, 2^65265228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65265228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101861760).

65265228 is an abundant number, since it is smaller than the sum of its proper divisors (138458292).

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

65265228 is a wasteful number, since it uses less digits than its factorization.

65265228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 391 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 65265228 is about 8078.6897452495. The cubic root of 65265228 is about 402.6187101467.

The spelling of 65265228 in words is "sixty-five million, two hundred sixty-five thousand, two hundred twenty-eight".