3221521552 has 10 divisors (see below), whose sum is σ = 6241698038. Its totient is φ = 1610760768.

The previous prime is 3221521543. The next prime is 3221521711. The reversal of 3221521552 is 2551251223.

It can be written as a sum of positive squares in only one way, i.e., 2461747456 + 759774096 = 49616^2 + 27564^2 .

It is a super-2 number, since 2×3221521552² = 20756402220000977408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3221521552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100672533 + ... + 100672564.

Almost surely, 2^3221521552 is an apocalyptic number.

It is an amenable number.

3221521552 is a deficient number, since it is larger than the sum of its proper divisors (3020176486).

3221521552 is a wasteful number, since it uses less digits than its factorization.

3221521552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201345105 (or 201345099 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 3221521552 is about 56758.4491683837. The cubic root of 3221521552 is about 1476.9088074087.

Adding to 3221521552 its reverse (2551251223), we get a palindrome (5772772775).

The spelling of 3221521552 in words is "three billion, two hundred twenty-one million, five hundred twenty-one thousand, five hundred fifty-two".