725318658 has 32 divisors (see below), whose sum is σ = 1613908800. Its totient is φ = 241459488.

The previous prime is 725318611. The next prime is 725318677. The reversal of 725318658 is 856813527.

725318658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35385 + ... + 51987.

It is an arithmetic number, because the mean of its divisors is an integer number (50434650).

Almost surely, 2^725318658 is an apocalyptic number.

725318658 is an abundant number, since it is smaller than the sum of its proper divisors (888590142).

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

725318658 is a wasteful number, since it uses less digits than its factorization.

725318658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17423 (or 17417 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 725318658 is about 26931.7407161141. The cubic root of 725318658 is about 898.4824871657.

The spelling of 725318658 in words is "seven hundred twenty-five million, three hundred eighteen thousand, six hundred fifty-eight".