1725341885 has 4 divisors (see below), whose sum is σ = 2070410268. Its totient is φ = 1380273504.

The previous prime is 1725341861. The next prime is 1725341887. The reversal of 1725341885 is 5881435271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5881435271 = 23 ⋅255714577.

It can be written as a sum of positive squares in 2 ways, for example, as 789104281 + 936237604 = 28091^2 + 30598^2 .

It is a cyclic number.

It is not a de Polignac number, because 1725341885 - 2¹⁶ = 1725276349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1725341887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172534184 + ... + 172534193.

It is an arithmetic number, because the mean of its divisors is an integer number (517602567).

Almost surely, 2^1725341885 is an apocalyptic number.

It is an amenable number.

1725341885 is a deficient number, since it is larger than the sum of its proper divisors (345068383).

1725341885 is an equidigital number, since it uses as much as digits as its factorization.

1725341885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345068382.

The product of its digits is 268800, while the sum is 44.

The square root of 1725341885 is about 41537.2349224163. The cubic root of 1725341885 is about 1199.3843798324.

The spelling of 1725341885 in words is "one billion, seven hundred twenty-five million, three hundred forty-one thousand, eight hundred eighty-five".