2842550221 has 6 divisors (see below), whose sum is σ = 3306640110. Its totient is φ = 2436471576.

The previous prime is 2842550189. The next prime is 2842550231. The reversal of 2842550221 is 1220552482.

It can be written as a sum of positive squares in only one way, i.e., 1761061225 + 1081488996 = 41965^2 + 32886^2 .

It is not a de Polignac number, because 2842550221 - 2⁵ = 2842550189 is a prime.

It is a super-3 number, since 3×2842550221³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842550231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29005566 + ... + 29005663.

It is an arithmetic number, because the mean of its divisors is an integer number (551106685).

Almost surely, 2^2842550221 is an apocalyptic number.

It is an amenable number.

2842550221 is a deficient number, since it is larger than the sum of its proper divisors (464089889).

2842550221 is an equidigital number, since it uses as much as digits as its factorization.

2842550221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58011243 (or 58011236 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 2842550221 is about 53315.5720310680. The cubic root of 2842550221 is about 1416.5635047801.

The spelling of 2842550221 in words is "two billion, eight hundred forty-two million, five hundred fifty thousand, two hundred twenty-one".