503385065 has 4 divisors (see below), whose sum is σ = 604062084. Its totient is φ = 402708048.

The previous prime is 503385017. The next prime is 503385097. The reversal of 503385065 is 560583305.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 167469481 + 335915584 = 12941^2 + 18328^2 .

It is a cyclic number.

It is not a de Polignac number, because 503385065 - 2⁸ = 503384809 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 50338502 + ... + 50338511.

It is an arithmetic number, because the mean of its divisors is an integer number (151015521).

Almost surely, 2^503385065 is an apocalyptic number.

It is an amenable number.

503385065 is a deficient number, since it is larger than the sum of its proper divisors (100677019).

503385065 is a wasteful number, since it uses less digits than its factorization.

503385065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100677018.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 503385065 is about 22436.2444495508. The cubic root of 503385065 is about 795.4876509225.

The spelling of 503385065 in words is "five hundred three million, three hundred eighty-five thousand, sixty-five".