726085553 has 2 divisors, whose sum is σ = 726085554. Its totient is φ = 726085552.

The previous prime is 726085457. The next prime is 726085559. The reversal of 726085553 is 355580627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491597584 + 234487969 = 22172^2 + 15313^2 .

It is an emirp because it is prime and its reverse (355580627) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726085553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 726085553.

It is not a weakly prime, because it can be changed into another prime (726085559) 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 as a sum of consecutive naturals, namely, 363042776 + 363042777.

It is an arithmetic number, because the mean of its divisors is an integer number (363042777).

Almost surely, 2^726085553 is an apocalyptic number.

It is an amenable number.

726085553 is a deficient number, since it is larger than the sum of its proper divisors (1).

726085553 is an equidigital number, since it uses as much as digits as its factorization.

726085553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 726085553 is about 26945.9747086647. The cubic root of 726085553 is about 898.7990372391.

The spelling of 726085553 in words is "seven hundred twenty-six million, eighty-five thousand, five hundred fifty-three".