2551330205 has 4 divisors (see below), whose sum is σ = 3061596252. Its totient is φ = 2041064160.

The previous prime is 2551330189. The next prime is 2551330219. The reversal of 2551330205 is 5020331552.

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 750431236 + 1800898969 = 27394^2 + 42437^2 .

It is not a de Polignac number, because 2551330205 - 2⁴ = 2551330189 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, 255133016 + ... + 255133025.

It is an arithmetic number, because the mean of its divisors is an integer number (765399063).

Almost surely, 2^2551330205 is an apocalyptic number.

It is an amenable number.

2551330205 is a deficient number, since it is larger than the sum of its proper divisors (510266047).

2551330205 is an equidigital number, since it uses as much as digits as its factorization.

2551330205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510266046.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 2551330205 is about 50510.6939667235. The cubic root of 2551330205 is about 1366.4347252299.

Adding to 2551330205 its reverse (5020331552), we get a palindrome (7571661757).

The spelling of 2551330205 in words is "two billion, five hundred fifty-one million, three hundred thirty thousand, two hundred five".