725253329 has 2 divisors, whose sum is σ = 725253330. Its totient is φ = 725253328.

The previous prime is 725253307. The next prime is 725253377. The reversal of 725253329 is 923352527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417180625 + 308072704 = 20425^2 + 17552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725253329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725253292 and 725253301.

It is not a weakly prime, because it can be changed into another prime (725213329) 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, 362626664 + 362626665.

It is an arithmetic number, because the mean of its divisors is an integer number (362626665).

Almost surely, 2^725253329 is an apocalyptic number.

It is an amenable number.

725253329 is a deficient number, since it is larger than the sum of its proper divisors (1).

725253329 is an equidigital number, since it uses as much as digits as its factorization.

725253329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 38.

The square root of 725253329 is about 26930.5278262421. The cubic root of 725253329 is about 898.4555111030.

The spelling of 725253329 in words is "seven hundred twenty-five million, two hundred fifty-three thousand, three hundred twenty-nine".