1725538285 has 4 divisors (see below), whose sum is σ = 2070645948. Its totient is φ = 1380430624.

The previous prime is 1725538273. The next prime is 1725538289. The reversal of 1725538285 is 5828355271.

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 512479044 + 1213059241 = 22638^2 + 34829^2 .

It is a cyclic number.

It is not a de Polignac number, because 1725538285 - 2¹⁷ = 1725407213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1725538289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172553824 + ... + 172553833.

It is an arithmetic number, because the mean of its divisors is an integer number (517661487).

Almost surely, 2^1725538285 is an apocalyptic number.

It is an amenable number.

1725538285 is a deficient number, since it is larger than the sum of its proper divisors (345107663).

1725538285 is an equidigital number, since it uses as much as digits as its factorization.

1725538285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345107662.

The product of its digits is 672000, while the sum is 46.

The square root of 1725538285 is about 41539.5989990274. The cubic root of 1725538285 is about 1199.4298877511.

The spelling of 1725538285 in words is "one billion, seven hundred twenty-five million, five hundred thirty-eight thousand, two hundred eighty-five".