725450041 has 2 divisors, whose sum is σ = 725450042. Its totient is φ = 725450040.

The previous prime is 725450021. The next prime is 725450053. The reversal of 725450041 is 140054527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693005625 + 32444416 = 26325^2 + 5696^2 .

It is an emirp because it is prime and its reverse (140054527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725450041 - 2⁷ = 725449913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725449991 and 725450009.

It is not a weakly prime, because it can be changed into another prime (725450021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362725020 + 362725021.

It is an arithmetic number, because the mean of its divisors is an integer number (362725021).

Almost surely, 2^725450041 is an apocalyptic number.

It is an amenable number.

725450041 is a deficient number, since it is larger than the sum of its proper divisors (1).

725450041 is an equidigital number, since it uses as much as digits as its factorization.

725450041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 725450041 is about 26934.1797907417. The cubic root of 725450041 is about 898.5367337585.

The spelling of 725450041 in words is "seven hundred twenty-five million, four hundred fifty thousand, forty-one".