16725539 has 2 divisors, whose sum is σ = 16725540. Its totient is φ = 16725538.

The previous prime is 16725509. The next prime is 16725557. The reversal of 16725539 is 93552761.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16725539 - 2¹² = 16721443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16725509) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8362769 + 8362770.

It is an arithmetic number, because the mean of its divisors is an integer number (8362770).

Almost surely, 2^16725539 is an apocalyptic number.

16725539 is a deficient number, since it is larger than the sum of its proper divisors (1).

16725539 is an equidigital number, since it uses as much as digits as its factorization.

16725539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 16725539 is about 4089.6869073317. The cubic root of 16725539 is about 255.7368868546.

The spelling of 16725539 in words is "sixteen million, seven hundred twenty-five thousand, five hundred thirty-nine".