2521260673 has 2 divisors, whose sum is σ = 2521260674. Its totient is φ = 2521260672.

The previous prime is 2521260671. The next prime is 2521260743. The reversal of 2521260673 is 3760621252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2161134144 + 360126529 = 46488^2 + 18977^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521260673 - 2¹ = 2521260671 is a prime.

Together with 2521260671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2521260671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260630336 + 1260630337.

It is an arithmetic number, because the mean of its divisors is an integer number (1260630337).

Almost surely, 2^2521260673 is an apocalyptic number.

It is an amenable number.

2521260673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521260673 is an equidigital number, since it uses as much as digits as its factorization.

2521260673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 2521260673 is about 50212.1566256619. The cubic root of 2521260673 is about 1361.0453095725.

The spelling of 2521260673 in words is "two billion, five hundred twenty-one million, two hundred sixty thousand, six hundred seventy-three".