2533315221 has 12 divisors (see below), whose sum is σ = 3679678080. Its totient is φ = 1679440680.

The previous prime is 2533315207. The next prime is 2533315237. The reversal of 2533315221 is 1225133352.

It is a happy number.

It is not a de Polignac number, because 2533315221 - 2⁵ = 2533315189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533315241) 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 11 ways as a sum of consecutive naturals, for example, 784645 + ... + 787866.

It is an arithmetic number, because the mean of its divisors is an integer number (306639840).

Almost surely, 2^2533315221 is an apocalyptic number.

It is an amenable number.

2533315221 is a deficient number, since it is larger than the sum of its proper divisors (1146362859).

2533315221 is a wasteful number, since it uses less digits than its factorization.

2533315221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572696 (or 1572693 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 2533315221 is about 50332.0496403633. The cubic root of 2533315221 is about 1363.2109863978.

Adding to 2533315221 its reverse (1225133352), we get a palindrome (3758448573).

The spelling of 2533315221 in words is "two billion, five hundred thirty-three million, three hundred fifteen thousand, two hundred twenty-one".