65223306 has 20 divisors (see below), whose sum is σ = 146148882. Its totient is φ = 21741048.

The previous prime is 65223283. The next prime is 65223307. The reversal of 65223306 is 60332256.

65223306 is a `hidden beast` number, since 652 + 2 + 3 + 3 + 0 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62015625 + 3207681 = 7875^2 + 1791^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 65223306.

It is not an unprimeable number, because it can be changed into a prime (65223307) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 201145 + ... + 201468.

Almost surely, 2^65223306 is an apocalyptic number.

65223306 is an abundant number, since it is smaller than the sum of its proper divisors (80925576).

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

65223306 is a wasteful number, since it uses less digits than its factorization.

65223306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402627 (or 402618 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 65223306 is about 8076.0947245559. The cubic root of 65223306 is about 402.5324866080.

The spelling of 65223306 in words is "sixty-five million, two hundred twenty-three thousand, three hundred six".