725981579 has 2 divisors, whose sum is σ = 725981580. Its totient is φ = 725981578.

The previous prime is 725981561. The next prime is 725981717. The reversal of 725981579 is 975189527.

It is a happy number.

725981579 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 is a cyclic number.

It is not a de Polignac number, because 725981579 - 2²⁰ = 724933003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725981579.

It is not a weakly prime, because it can be changed into another prime (725981539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362990789 + 362990790.

It is an arithmetic number, because the mean of its divisors is an integer number (362990790).

Almost surely, 2^725981579 is an apocalyptic number.

725981579 is a deficient number, since it is larger than the sum of its proper divisors (1).

725981579 is an equidigital number, since it uses as much as digits as its factorization.

725981579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 53.

The square root of 725981579 is about 26944.0453347303. The cubic root of 725981579 is about 898.7561331158.

The spelling of 725981579 in words is "seven hundred twenty-five million, nine hundred eighty-one thousand, five hundred seventy-nine".