2503661449 has 2 divisors, whose sum is σ = 2503661450. Its totient is φ = 2503661448.

The previous prime is 2503661441. The next prime is 2503661507. The reversal of 2503661449 is 9441663052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1943487225 + 560174224 = 44085^2 + 23668^2 .

It is a cyclic number.

It is not a de Polignac number, because 2503661449 - 2³ = 2503661441 is a prime.

It is not a weakly prime, because it can be changed into another prime (2503661441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251830724 + 1251830725.

It is an arithmetic number, because the mean of its divisors is an integer number (1251830725).

Almost surely, 2^2503661449 is an apocalyptic number.

It is an amenable number.

2503661449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2503661449 is an equidigital number, since it uses as much as digits as its factorization.

2503661449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 2503661449 is about 50036.6010935995. The cubic root of 2503661449 is about 1357.8710652045.

The spelling of 2503661449 in words is "two billion, five hundred three million, six hundred sixty-one thousand, four hundred forty-nine".