5565573321 has 24 divisors (see below), whose sum is σ = 9417076704. Its totient is φ = 2891206080.

The previous prime is 5565573317. The next prime is 5565573359. The reversal of 5565573321 is 1233755655.

It is a happy number.

It is not a de Polignac number, because 5565573321 - 2² = 5565573317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5565573311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1719340 + ... + 1722573.

It is an arithmetic number, because the mean of its divisors is an integer number (392378196).

Almost surely, 2^5565573321 is an apocalyptic number.

It is an amenable number.

5565573321 is a deficient number, since it is larger than the sum of its proper divisors (3851503383).

5565573321 is a wasteful number, since it uses less digits than its factorization.

5565573321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441941 (or 3441934 counting only the distinct ones).

The product of its digits is 472500, while the sum is 42.

The square root of 5565573321 is about 74602.7701965550. The cubic root of 5565573321 is about 1772.1615225114.

The spelling of 5565573321 in words is "five billion, five hundred sixty-five million, five hundred seventy-three thousand, three hundred twenty-one".