2502643489 has 2 divisors, whose sum is σ = 2502643490. Its totient is φ = 2502643488.

The previous prime is 2502643487. The next prime is 2502643543. The reversal of 2502643489 is 9843462052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2184627600 + 318015889 = 46740^2 + 17833^2 .

It is a cyclic number.

It is not a de Polignac number, because 2502643489 - 2¹ = 2502643487 is a prime.

Together with 2502643487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2502643487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251321744 + 1251321745.

It is an arithmetic number, because the mean of its divisors is an integer number (1251321745).

Almost surely, 2^2502643489 is an apocalyptic number.

It is an amenable number.

2502643489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2502643489 is an equidigital number, since it uses as much as digits as its factorization.

2502643489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 2502643489 is about 50026.4279056580. The cubic root of 2502643489 is about 1357.6870086621.

The spelling of 2502643489 in words is "two billion, five hundred two million, six hundred forty-three thousand, four hundred eighty-nine".