3223355520 has 256 divisors, whose sum is σ = 12810286080. Its totient is φ = 669757440.

The previous prime is 3223355519. The next prime is 3223355543. The reversal of 3223355520 is 255533223.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136939 + ... + 158741.

It is an arithmetic number, because the mean of its divisors is an integer number (50040180).

Almost surely, 2^3223355520 is an apocalyptic number.

3223355520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3223355520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6405143040).

3223355520 is an abundant number, since it is smaller than the sum of its proper divisors (9586930560).

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

3223355520 is a wasteful number, since it uses less digits than its factorization.

3223355520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21843 (or 21831 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 30.

The square root of 3223355520 is about 56774.6027727187. The cubic root of 3223355520 is about 1477.1890155464.

Adding to 3223355520 its reverse (255533223), we get a palindrome (3478888743).

The spelling of 3223355520 in words is "three billion, two hundred twenty-three million, three hundred fifty-five thousand, five hundred twenty".