725044241 has 2 divisors, whose sum is σ = 725044242. Its totient is φ = 725044240.

The previous prime is 725044219. The next prime is 725044247. The reversal of 725044241 is 142440527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424195216 + 300849025 = 20596^2 + 17345^2 .

It is an emirp because it is prime and its reverse (142440527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725044241 - 2¹⁴ = 725027857 is a prime.

It is not a weakly prime, because it can be changed into another prime (725044247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362522120 + 362522121.

It is an arithmetic number, because the mean of its divisors is an integer number (362522121).

Almost surely, 2^725044241 is an apocalyptic number.

It is an amenable number.

725044241 is a deficient number, since it is larger than the sum of its proper divisors (1).

725044241 is an equidigital number, since it uses as much as digits as its factorization.

725044241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 725044241 is about 26926.6455578856. The cubic root of 725044241 is about 898.3691622765.

Adding to 725044241 its reverse (142440527), we get a palindrome (867484768).

The spelling of 725044241 in words is "seven hundred twenty-five million, forty-four thousand, two hundred forty-one".