725735249 has 2 divisors, whose sum is σ = 725735250. Its totient is φ = 725735248.

The previous prime is 725735221. The next prime is 725735299. The reversal of 725735249 is 942537527.

It is a happy number.

725735249 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., 551310400 + 174424849 = 23480^2 + 13207^2 .

It is an emirp because it is prime and its reverse (942537527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725735249 - 2⁸ = 725734993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (725735299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362867624 + 362867625.

It is an arithmetic number, because the mean of its divisors is an integer number (362867625).

Almost surely, 2^725735249 is an apocalyptic number.

It is an amenable number.

725735249 is a deficient number, since it is larger than the sum of its proper divisors (1).

725735249 is an equidigital number, since it uses as much as digits as its factorization.

725735249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 44.

The square root of 725735249 is about 26939.4738070364. The cubic root of 725735249 is about 898.6544704616.

The spelling of 725735249 in words is "seven hundred twenty-five million, seven hundred thirty-five thousand, two hundred forty-nine".