503995025 has 12 divisors (see below), whose sum is σ = 631399692. Its totient is φ = 399037440.

The previous prime is 503994979. The next prime is 503995027. The reversal of 503995025 is 520599305.

It can be written as a sum of positive squares in 6 ways, for example, as 7997584 + 495997441 = 2828^2 + 22271^2 .

It is not a de Polignac number, because 503995025 - 2⁸ = 503994769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 503995025.

It is not an unprimeable number, because it can be changed into a prime (503995027) 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, 101492 + ... + 106341.

It is an arithmetic number, because the mean of its divisors is an integer number (52616641).

Almost surely, 2^503995025 is an apocalyptic number.

It is an amenable number.

503995025 is a deficient number, since it is larger than the sum of its proper divisors (127404667).

503995025 is a wasteful number, since it uses less digits than its factorization.

503995025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207940 (or 207935 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 38.

The square root of 503995025 is about 22449.8335183137. The cubic root of 503995025 is about 795.8088230773.

The spelling of 503995025 in words is "five hundred three million, nine hundred ninety-five thousand, twenty-five".