2551300221 has 16 divisors (see below), whose sum is σ = 3596427200. Its totient is φ = 1604302848.

The previous prime is 2551300159. The next prime is 2551300223. The reversal of 2551300221 is 1220031552.

It is not a de Polignac number, because 2551300221 - 2²⁶ = 2484191357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551300223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84676 + ... + 110781.

It is an arithmetic number, because the mean of its divisors is an integer number (224776700).

Almost surely, 2^2551300221 is an apocalyptic number.

It is an amenable number.

2551300221 is a deficient number, since it is larger than the sum of its proper divisors (1045126979).

2551300221 is a wasteful number, since it uses less digits than its factorization.

2551300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195708.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2551300221 is about 50510.3971574170. The cubic root of 2551300221 is about 1366.4293722916.

Adding to 2551300221 its reverse (1220031552), we get a palindrome (3771331773).

The spelling of 2551300221 in words is "two billion, five hundred fifty-one million, three hundred thousand, two hundred twenty-one".