725203447 has 2 divisors, whose sum is σ = 725203448. Its totient is φ = 725203446.

The previous prime is 725203439. The next prime is 725203477. The reversal of 725203447 is 744302527.

It is a weak prime.

It is an emirp because it is prime and its reverse (744302527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725203447 - 2³ = 725203439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725203477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362601723 + 362601724.

It is an arithmetic number, because the mean of its divisors is an integer number (362601724).

Almost surely, 2^725203447 is an apocalyptic number.

725203447 is a deficient number, since it is larger than the sum of its proper divisors (1).

725203447 is an equidigital number, since it uses as much as digits as its factorization.

725203447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 725203447 is about 26929.6016866199. The cubic root of 725203447 is about 898.4349124222.

The spelling of 725203447 in words is "seven hundred twenty-five million, two hundred three thousand, four hundred forty-seven".