1725290513 has 4 divisors (see below), whose sum is σ = 1800303168. Its totient is φ = 1650277860.

The previous prime is 1725290473. The next prime is 1725290521. The reversal of 1725290513 is 3150925271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1725290513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1725290813) 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, 37506293 + ... + 37506338.

It is an arithmetic number, because the mean of its divisors is an integer number (450075792).

Almost surely, 2^1725290513 is an apocalyptic number.

It is an amenable number.

1725290513 is a deficient number, since it is larger than the sum of its proper divisors (75012655).

1725290513 is an equidigital number, since it uses as much as digits as its factorization.

1725290513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75012654.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1725290513 is about 41536.6165328858. The cubic root of 1725290513 is about 1199.3724758369.

The spelling of 1725290513 in words is "one billion, seven hundred twenty-five million, two hundred ninety thousand, five hundred thirteen".