512500025 has 12 divisors (see below), whose sum is σ = 635782224. Its totient is φ = 409818000.

The previous prime is 512500013. The next prime is 512500039. The reversal of 512500025 is 520005215.

It is not a de Polignac number, because 512500025 - 2⁸ = 512499769 is a prime.

It is a Duffinian number.

It is a Curzon 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, 99770 + ... + 104780.

It is an arithmetic number, because the mean of its divisors is an integer number (52981852).

Almost surely, 2^512500025 is an apocalyptic number.

It is an amenable number.

512500025 is a deficient number, since it is larger than the sum of its proper divisors (123282199).

512500025 is a wasteful number, since it uses less digits than its factorization.

512500025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9112 (or 9107 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 512500025 is about 22638.4633975012. The cubic root of 512500025 is about 800.2603449539.

The spelling of 512500025 in words is "five hundred twelve million, five hundred thousand, twenty-five".