4521520449 has 12 divisors (see below), whose sum is σ = 6545968000. Its totient is φ = 3007477944.

The previous prime is 4521520441. The next prime is 4521520457. The reversal of 4521520449 is 9440251254.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4521520441) and next prime (4521520457).

It is not a de Polignac number, because 4521520449 - 2³ = 4521520441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4521520441) 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 in 11 ways as a sum of consecutive naturals, for example, 568249 + ... + 576150.

Almost surely, 2^4521520449 is an apocalyptic number.

It is an amenable number.

4521520449 is a deficient number, since it is larger than the sum of its proper divisors (2024447551).

4521520449 is a wasteful number, since it uses less digits than its factorization.

4521520449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144844 (or 1144841 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 4521520449 is about 67242.2519625867. The cubic root of 4521520449 is about 1653.5912533865.

The spelling of 4521520449 in words is "four billion, five hundred twenty-one million, five hundred twenty thousand, four hundred forty-nine".