725765413 has 2 divisors, whose sum is σ = 725765414. Its totient is φ = 725765412.

The previous prime is 725765357. The next prime is 725765449. The reversal of 725765413 is 314567527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388602369 + 337163044 = 19713^2 + 18362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725765413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725762413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362882706 + 362882707.

It is an arithmetic number, because the mean of its divisors is an integer number (362882707).

Almost surely, 2^725765413 is an apocalyptic number.

It is an amenable number.

725765413 is a deficient number, since it is larger than the sum of its proper divisors (1).

725765413 is an equidigital number, since it uses as much as digits as its factorization.

725765413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 40.

The square root of 725765413 is about 26940.0336488283. The cubic root of 725765413 is about 898.6669206574. Note that the first 3 decimals are identical.

The spelling of 725765413 in words is "seven hundred twenty-five million, seven hundred sixty-five thousand, four hundred thirteen".