1729765325 has 6 divisors (see below), whose sum is σ = 2144909034. Its totient is φ = 1383812240.

The previous prime is 1729765321. The next prime is 1729765357. The reversal of 1729765325 is 5235679271.

It can be written as a sum of positive squares in 3 ways, for example, as 14645929 + 1715119396 = 3827^2 + 41414^2 .

It is not a de Polignac number, because 1729765325 - 2² = 1729765321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1729765325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1729765321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34595282 + ... + 34595331.

It is an arithmetic number, because the mean of its divisors is an integer number (357484839).

Almost surely, 2^1729765325 is an apocalyptic number.

It is an amenable number.

1729765325 is a deficient number, since it is larger than the sum of its proper divisors (415143709).

1729765325 is an equidigital number, since it uses as much as digits as its factorization.

1729765325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69190623 (or 69190618 counting only the distinct ones).

The product of its digits is 793800, while the sum is 47.

The square root of 1729765325 is about 41590.4475210354. The cubic root of 1729765325 is about 1200.4085009696.

The spelling of 1729765325 in words is "one billion, seven hundred twenty-nine million, seven hundred sixty-five thousand, three hundred twenty-five".