2006260621 has 2 divisors, whose sum is σ = 2006260622. Its totient is φ = 2006260620.

The previous prime is 2006260601. The next prime is 2006260631. The reversal of 2006260621 is 1260626002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1117564900 + 888695721 = 33430^2 + 29811^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006260621 - 2⁷ = 2006260493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006260601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003130310 + 1003130311.

It is an arithmetic number, because the mean of its divisors is an integer number (1003130311).

Almost surely, 2^2006260621 is an apocalyptic number.

It is an amenable number.

2006260621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006260621 is an equidigital number, since it uses as much as digits as its factorization.

2006260621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2006260621 is about 44791.3007290478. The cubic root of 2006260621 is about 1261.2343285538.

Adding to 2006260621 its reverse (1260626002), we get a palindrome (3266886623).

The spelling of 2006260621 in words is "two billion, six million, two hundred sixty thousand, six hundred twenty-one".