2563329221 has 2 divisors, whose sum is σ = 2563329222. Its totient is φ = 2563329220.

The previous prime is 2563329211. The next prime is 2563329239. The reversal of 2563329221 is 1229233652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2535122500 + 28206721 = 50350^2 + 5311^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563329221 - 2⁶ = 2563329157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2563329211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281664610 + 1281664611.

It is an arithmetic number, because the mean of its divisors is an integer number (1281664611).

Almost surely, 2^2563329221 is an apocalyptic number.

It is an amenable number.

2563329221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563329221 is an equidigital number, since it uses as much as digits as its factorization.

2563329221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 2563329221 is about 50629.3316270322. The cubic root of 2563329221 is about 1368.5735096111.

The spelling of 2563329221 in words is "two billion, five hundred sixty-three million, three hundred twenty-nine thousand, two hundred twenty-one".