725725772 has 12 divisors (see below), whose sum is σ = 1285322136. Its totient is φ = 358490880.

The previous prime is 725725751. The next prime is 725725787. The reversal of 725725772 is 277527527.

It is a super-2 number, since 2×725725772² = 1053355792289991968, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1092629 + ... + 1093292.

It is an arithmetic number, because the mean of its divisors is an integer number (107110178).

Almost surely, 2^725725772 is an apocalyptic number.

It is an amenable number.

725725772 is a deficient number, since it is larger than the sum of its proper divisors (559596364).

725725772 is a wasteful number, since it uses less digits than its factorization.

725725772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186008 (or 2186006 counting only the distinct ones).

The product of its digits is 480200, while the sum is 44.

The square root of 725725772 is about 26939.2979121580. The cubic root of 725725772 is about 898.6505587571.

The spelling of 725725772 in words is "seven hundred twenty-five million, seven hundred twenty-five thousand, seven hundred seventy-two".