2533113221 has 8 divisors (see below), whose sum is σ = 2569651200. Its totient is φ = 2496599280.

The previous prime is 2533113157. The next prime is 2533113263. The reversal of 2533113221 is 1223113352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2533113221 - 2⁶ = 2533113157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533112221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413660 + ... + 419738.

It is an arithmetic number, because the mean of its divisors is an integer number (321206400).

Almost surely, 2^2533113221 is an apocalyptic number.

It is an amenable number.

2533113221 is a deficient number, since it is larger than the sum of its proper divisors (36537979).

2533113221 is an equidigital number, since it uses as much as digits as its factorization.

2533113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12019.

The product of its digits is 1080, while the sum is 23.

The square root of 2533113221 is about 50330.0429266656. The cubic root of 2533113221 is about 1363.1747524626.

Adding to 2533113221 its reverse (1223113352), we get a palindrome (3756226573).

The spelling of 2533113221 in words is "two billion, five hundred thirty-three million, one hundred thirteen thousand, two hundred twenty-one".