725318980 has 12 divisors (see below), whose sum is σ = 1523169900. Its totient is φ = 290127584.

The previous prime is 725318929. The next prime is 725318983. The reversal of 725318980 is 89813527.

It can be written as a sum of positive squares in 2 ways, for example, as 459759364 + 265559616 = 21442^2 + 16296^2 .

It is not an unprimeable number, because it can be changed into a prime (725318983) 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 in 3 ways as a sum of consecutive naturals, for example, 18132955 + ... + 18132994.

It is an arithmetic number, because the mean of its divisors is an integer number (126930825).

Almost surely, 2^725318980 is an apocalyptic number.

It is an amenable number.

725318980 is an abundant number, since it is smaller than the sum of its proper divisors (797850920).

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

725318980 is a wasteful number, since it uses less digits than its factorization.

725318980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36265958 (or 36265956 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 725318980 is about 26931.7466941897. The cubic root of 725318980 is about 898.4826201239.

The spelling of 725318980 in words is "seven hundred twenty-five million, three hundred eighteen thousand, nine hundred eighty".