724055513 has 2 divisors, whose sum is σ = 724055514. Its totient is φ = 724055512.

The previous prime is 724055503. The next prime is 724055581. The reversal of 724055513 is 315550427.

724055513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719741584 + 4313929 = 26828^2 + 2077^2 .

It is an emirp because it is prime and its reverse (315550427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724055513 - 2²⁰ = 723006937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 724055513.

It is not a weakly prime, because it can be changed into another prime (724055503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362027756 + 362027757.

It is an arithmetic number, because the mean of its divisors is an integer number (362027757).

Almost surely, 2^724055513 is an apocalyptic number.

It is an amenable number.

724055513 is a deficient number, since it is larger than the sum of its proper divisors (1).

724055513 is an equidigital number, since it uses as much as digits as its factorization.

724055513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 724055513 is about 26908.2796365728. The cubic root of 724055513 is about 897.9606139606.

The spelling of 724055513 in words is "seven hundred twenty-four million, fifty-five thousand, five hundred thirteen".