4525216009 has 12 divisors (see below), whose sum is σ = 4871308572. Its totient is φ = 4189148160.

The previous prime is 4525216001. The next prime is 4525216037. The reversal of 4525216009 is 9006125254.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1087152784 + 3438063225 = 32972^2 + 58635^2 .

It is not a de Polignac number, because 4525216009 - 2³ = 4525216001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4525216001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27489 + ... + 99025.

It is an arithmetic number, because the mean of its divisors is an integer number (405942381).

Almost surely, 2^4525216009 is an apocalyptic number.

It is an amenable number.

4525216009 is a deficient number, since it is larger than the sum of its proper divisors (346092563).

4525216009 is an equidigital number, since it uses as much as digits as its factorization.

4525216009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71676 (or 71615 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 4525216009 is about 67269.7257984600. The cubic root of 4525216009 is about 1654.0416388734.

The spelling of 4525216009 in words is "four billion, five hundred twenty-five million, two hundred sixteen thousand, nine".