650072825 has 18 divisors (see below), whose sum is σ = 821675274. Its totient is φ = 510190720.

The previous prime is 650072803. The next prime is 650072831. The reversal of 650072825 is 528270056.

It can be written as a sum of positive squares in 9 ways, for example, as 191213584 + 458859241 = 13828^2 + 21421^2 .

It is not a de Polignac number, because 650072825 - 2²⁶ = 582963961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 65597 + ... + 74853.

Almost surely, 2^650072825 is an apocalyptic number.

It is an amenable number.

650072825 is a deficient number, since it is larger than the sum of its proper divisors (171602449).

650072825 is an equidigital number, since it uses as much as digits as its factorization.

650072825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373 (or 9315 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 650072825 is about 25496.5257437165. The cubic root of 650072825 is about 866.2714548317.

The spelling of 650072825 in words is "six hundred fifty million, seventy-two thousand, eight hundred twenty-five".