2489505049 has 2 divisors, whose sum is σ = 2489505050. Its totient is φ = 2489505048.

The previous prime is 2489505047. The next prime is 2489505079. The reversal of 2489505049 is 9405059842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2489311449 + 193600 = 49893^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 2489505049 - 2¹ = 2489505047 is a prime.

Together with 2489505047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2489505047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244752524 + 1244752525.

It is an arithmetic number, because the mean of its divisors is an integer number (1244752525).

Almost surely, 2^2489505049 is an apocalyptic number.

It is an amenable number.

2489505049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2489505049 is an equidigital number, since it uses as much as digits as its factorization.

2489505049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 2489505049 is about 49894.9401142040. The cubic root of 2489505049 is about 1355.3069658518.

The spelling of 2489505049 in words is "two billion, four hundred eighty-nine million, five hundred five thousand, forty-nine".