1725005305 has 8 divisors (see below), whose sum is σ = 2125952712. Its totient is φ = 1342706688.

The previous prime is 1725005251. The next prime is 1725005339. The reversal of 1725005305 is 5035005271.

It can be written as a sum of positive squares in 4 ways, for example, as 84107241 + 1640898064 = 9171^2 + 40508^2 .

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 1725005305 - 2⁹ = 1725004793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4661992 + ... + 4662361.

It is an arithmetic number, because the mean of its divisors is an integer number (265744089).

Almost surely, 2^1725005305 is an apocalyptic number.

It is an amenable number.

1725005305 is a deficient number, since it is larger than the sum of its proper divisors (400947407).

1725005305 is an equidigital number, since it uses as much as digits as its factorization.

1725005305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9324395.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 1725005305 is about 41533.1831792363. The cubic root of 1725005305 is about 1199.3063827213.

The spelling of 1725005305 in words is "one billion, seven hundred twenty-five million, five thousand, three hundred five".