3220534505 has 4 divisors (see below), whose sum is σ = 3864641412. Its totient is φ = 2576427600.

The previous prime is 3220534489. The next prime is 3220534531. The reversal of 3220534505 is 5054350223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1053911296 + 2166623209 = 32464^2 + 46547^2 .

It is not a de Polignac number, because 3220534505 - 2⁴ = 3220534489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322053446 + ... + 322053455.

It is an arithmetic number, because the mean of its divisors is an integer number (966160353).

Almost surely, 2^3220534505 is an apocalyptic number.

It is an amenable number.

3220534505 is a deficient number, since it is larger than the sum of its proper divisors (644106907).

3220534505 is an equidigital number, since it uses as much as digits as its factorization.

3220534505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644106906.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 3220534505 is about 56749.7533474816. The cubic root of 3220534505 is about 1476.7579545386.

Adding to 3220534505 its reverse (5054350223), we get a palindrome (8274884728).

The spelling of 3220534505 in words is "three billion, two hundred twenty million, five hundred thirty-four thousand, five hundred five".