1003165525 has 6 divisors (see below), whose sum is σ = 1243925282. Its totient is φ = 802532400.

The previous prime is 1003165517. The next prime is 1003165577. The reversal of 1003165525 is 5255613001.

It can be written as a sum of positive squares in 3 ways, for example, as 12552849 + 990612676 = 3543^2 + 31474^2 .

It is not a de Polignac number, because 1003165525 - 2³ = 1003165517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003165493 and 1003165502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20063286 + ... + 20063335.

Almost surely, 2^1003165525 is an apocalyptic number.

It is an amenable number.

1003165525 is a deficient number, since it is larger than the sum of its proper divisors (240759757).

1003165525 is an equidigital number, since it uses as much as digits as its factorization.

1003165525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40126631 (or 40126626 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1003165525 is about 31672.7883995079. The cubic root of 1003165525 is about 1001.0540635596.

Adding to 1003165525 its reverse (5255613001), we get a palindrome (6258778526).

The spelling of 1003165525 in words is "one billion, three million, one hundred sixty-five thousand, five hundred twenty-five".