2200643521 has 2 divisors, whose sum is σ = 2200643522. Its totient is φ = 2200643520.

The previous prime is 2200643461. The next prime is 2200643527. The reversal of 2200643521 is 1253460022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2200641921 + 1600 = 46911^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200643521 - 2²⁷ = 2066425793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2200643527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100321760 + 1100321761.

It is an arithmetic number, because the mean of its divisors is an integer number (1100321761).

Almost surely, 2^2200643521 is an apocalyptic number.

It is an amenable number.

2200643521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200643521 is an equidigital number, since it uses as much as digits as its factorization.

2200643521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2200643521 is about 46911.0170535664. The cubic root of 2200643521 is about 1300.7182462932.

The spelling of 2200643521 in words is "two billion, two hundred million, six hundred forty-three thousand, five hundred twenty-one".