1725539 has 2 divisors, whose sum is σ = 1725540. Its totient is φ = 1725538.

The previous prime is 1725527. The next prime is 1725541. The reversal of 1725539 is 9355271.

It is a strong prime.

It is an emirp because it is prime and its reverse (9355271) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1725539 is a prime.

It is a Sophie Germain prime.

Together with 1725541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1725509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862769 + 862770.

It is an arithmetic number, because the mean of its divisors is an integer number (862770).

2^1725539 is an apocalyptic number.

1725539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1725539 is an equidigital number, since it uses as much as digits as its factorization.

1725539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 32.

The square root of 1725539 is about 1313.5977314231. The cubic root of 1725539 is about 119.9430053418.

The spelling of 1725539 in words is "one million, seven hundred twenty-five thousand, five hundred thirty-nine".