2553221005 has 4 divisors (see below), whose sum is σ = 3063865212. Its totient is φ = 2042576800.

The previous prime is 2553220991. The next prime is 2553221051. The reversal of 2553221005 is 5001223552.

It is a happy number.

2553221005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1558512484 + 994708521 = 39478^2 + 31539^2 .

It is not a de Polignac number, because 2553221005 - 2⁷ = 2553220877 is a prime.

It is a Duffinian number.

It is a congruent 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, 255322096 + ... + 255322105.

It is an arithmetic number, because the mean of its divisors is an integer number (765966303).

Almost surely, 2^2553221005 is an apocalyptic number.

It is an amenable number.

2553221005 is a deficient number, since it is larger than the sum of its proper divisors (510644207).

2553221005 is an equidigital number, since it uses as much as digits as its factorization.

2553221005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510644206.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2553221005 is about 50529.4073288021. The cubic root of 2553221005 is about 1366.7721984408.

Adding to 2553221005 its reverse (5001223552), we get a palindrome (7554444557).

The spelling of 2553221005 in words is "two billion, five hundred fifty-three million, two hundred twenty-one thousand, five".