725081099 has 2 divisors, whose sum is σ = 725081100. Its totient is φ = 725081098.

The previous prime is 725081087. The next prime is 725081153. The reversal of 725081099 is 990180527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725081099 - 2⁸ = 725080843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (725081009) 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, 362540549 + 362540550.

It is an arithmetic number, because the mean of its divisors is an integer number (362540550).

Almost surely, 2^725081099 is an apocalyptic number.

725081099 is a deficient number, since it is larger than the sum of its proper divisors (1).

725081099 is an equidigital number, since it uses as much as digits as its factorization.

725081099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 725081099 is about 26927.3299641832. The cubic root of 725081099 is about 898.3843850393.

The spelling of 725081099 in words is "seven hundred twenty-five million, eighty-one thousand, ninety-nine".