725320770 has 16 divisors (see below), whose sum is σ = 1740769920. Its totient is φ = 193418864.

The previous prime is 725320753. The next prime is 725320777. The reversal of 725320770 is 77023527.

It is not an unprimeable number, because it can be changed into a prime (725320777) 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 in 7 ways as a sum of consecutive naturals, for example, 12088650 + ... + 12088709.

It is an arithmetic number, because the mean of its divisors is an integer number (108798120).

Almost surely, 2^725320770 is an apocalyptic number.

725320770 is an abundant number, since it is smaller than the sum of its proper divisors (1015449150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725320770 is a wasteful number, since it uses less digits than its factorization.

725320770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24177369.

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 725320770 is about 26931.7799263250. The cubic root of 725320770 is about 898.4833592390.

The spelling of 725320770 in words is "seven hundred twenty-five million, three hundred twenty thousand, seven hundred seventy".