725655308 has 18 divisors (see below), whose sum is σ = 1477227276. Its totient is φ = 310995048.

The previous prime is 725655289. The next prime is 725655311. The reversal of 725655308 is 803556527.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1850966 + ... + 1851357.

It is an arithmetic number, because the mean of its divisors is an integer number (82068182).

Almost surely, 2^725655308 is an apocalyptic number.

It is an amenable number.

725655308 is an abundant number, since it is smaller than the sum of its proper divisors (751571968).

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

725655308 is a wasteful number, since it uses less digits than its factorization.

725655308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702341 (or 3702332 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 725655308 is about 26937.9900512269. The cubic root of 725655308 is about 898.6214731323.

The spelling of 725655308 in words is "seven hundred twenty-five million, six hundred fifty-five thousand, three hundred eight".