650320025 has 12 divisors (see below), whose sum is σ = 812556624. Its totient is φ = 516282000.

The previous prime is 650320001. The next prime is 650320031. The reversal of 650320025 is 520023056.

It is a happy number.

It is not a de Polignac number, because 650320025 - 2⁶ = 650319961 is a prime.

It is a super-2 number, since 2×650320025² = 845832269832001250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 96011 + ... + 102560.

It is an arithmetic number, because the mean of its divisors is an integer number (67713052).

Almost surely, 2^650320025 is an apocalyptic number.

It is an amenable number.

650320025 is a deficient number, since it is larger than the sum of its proper divisors (162236599).

650320025 is a wasteful number, since it uses less digits than its factorization.

650320025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198712 (or 198707 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 650320025 is about 25501.3730022523. The cubic root of 650320025 is about 866.3812451801.

The spelling of 650320025 in words is "six hundred fifty million, three hundred twenty thousand, twenty-five".