725685672 has 16 divisors (see below), whose sum is σ = 1814214240. Its totient is φ = 241895216.

The previous prime is 725685671. The next prime is 725685689. The reversal of 725685672 is 276586527.

It is not an unprimeable number, because it can be changed into a prime (725685671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15118428 + ... + 15118475.

It is an arithmetic number, because the mean of its divisors is an integer number (113388390).

Almost surely, 2^725685672 is an apocalyptic number.

It is an amenable number.

725685672 is an abundant number, since it is smaller than the sum of its proper divisors (1088528568).

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

725685672 is a wasteful number, since it uses less digits than its factorization.

725685672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30236912 (or 30236908 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 725685672 is about 26938.5536360065. The cubic root of 725685672 is about 898.6340067974.

The spelling of 725685672 in words is "seven hundred twenty-five million, six hundred eighty-five thousand, six hundred seventy-two".