2550641221 has 8 divisors (see below), whose sum is σ = 2586205440. Its totient is φ = 2515284912.

The previous prime is 2550641209. The next prime is 2550641231. The reversal of 2550641221 is 1221460552.

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 2550641221 - 2²³ = 2542252613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2550641221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550641231) 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 7 ways as a sum of consecutive naturals, for example, 27190 + ... + 76423.

It is an arithmetic number, because the mean of its divisors is an integer number (323275680).

Almost surely, 2^2550641221 is an apocalyptic number.

It is an amenable number.

2550641221 is a deficient number, since it is larger than the sum of its proper divisors (35564219).

2550641221 is a wasteful number, since it uses less digits than its factorization.

2550641221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103955.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2550641221 is about 50503.8733267063. The cubic root of 2550641221 is about 1366.3117127428.

The spelling of 2550641221 in words is "two billion, five hundred fifty million, six hundred forty-one thousand, two hundred twenty-one".