503545125065 has 8 divisors (see below), whose sum is σ = 604310221320. Its totient is φ = 402798719232.

The previous prime is 503545125053. The next prime is 503545125067. The reversal of 503545125065 is 560521545305.

It can be written as a sum of positive squares in 4 ways, for example, as 144287541904 + 359257583161 = 379852^2 + 599381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 503545125065 - 2⁸ = 503545124809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503545125067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4613264 + ... + 4721153.

It is an arithmetic number, because the mean of its divisors is an integer number (75538777665).

Almost surely, 2^503545125065 is an apocalyptic number.

It is an amenable number.

503545125065 is a deficient number, since it is larger than the sum of its proper divisors (100765096255).

503545125065 is a wasteful number, since it uses less digits than its factorization.

503545125065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9345211.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 503545125065 in words is "five hundred three billion, five hundred forty-five million, one hundred twenty-five thousand, sixty-five".