2050566221 has 4 divisors (see below), whose sum is σ = 2236981344. Its totient is φ = 1864151100.

The previous prime is 2050566151. The next prime is 2050566227. The reversal of 2050566221 is 1226650502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2050566221 - 2²² = 2046371917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050566227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93207545 + ... + 93207566.

It is an arithmetic number, because the mean of its divisors is an integer number (559245336).

Almost surely, 2^2050566221 is an apocalyptic number.

It is an amenable number.

2050566221 is a deficient number, since it is larger than the sum of its proper divisors (186415123).

2050566221 is a wasteful number, since it uses less digits than its factorization.

2050566221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186415122.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2050566221 is about 45283.1781238906. The cubic root of 2050566221 is about 1270.4510397036.

The spelling of 2050566221 in words is "two billion, fifty million, five hundred sixty-six thousand, two hundred twenty-one".