725660041 has 2 divisors, whose sum is σ = 725660042. Its totient is φ = 725660040.

The previous prime is 725660003. The next prime is 725660081. The reversal of 725660041 is 140066527.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687960441 + 37699600 = 26229^2 + 6140^2 .

It is a cyclic number.

It is not a de Polignac number, because 725660041 - 2¹¹ = 725657993 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 725659985 and 725660012.

It is not a weakly prime, because it can be changed into another prime (725660081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362830020 + 362830021.

It is an arithmetic number, because the mean of its divisors is an integer number (362830021).

Almost surely, 2^725660041 is an apocalyptic number.

It is an amenable number.

725660041 is a deficient number, since it is larger than the sum of its proper divisors (1).

725660041 is an equidigital number, since it uses as much as digits as its factorization.

725660041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 725660041 is about 26938.0779009936. The cubic root of 725660041 is about 898.6234268451.

The spelling of 725660041 in words is "seven hundred twenty-five million, six hundred sixty thousand, forty-one".