725518633 has 8 divisors (see below), whose sum is σ = 829349568. Its totient is φ = 621734064.

The previous prime is 725518627. The next prime is 725518727. The reversal of 725518633 is 336815527.

725518633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-725518633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725518613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33810 + ... + 50932.

It is an arithmetic number, because the mean of its divisors is an integer number (103668696).

Almost surely, 2^725518633 is an apocalyptic number.

It is an amenable number.

725518633 is a deficient number, since it is larger than the sum of its proper divisors (103830935).

725518633 is a wasteful number, since it uses less digits than its factorization.

725518633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23183.

The product of its digits is 151200, while the sum is 40.

The square root of 725518633 is about 26935.4530869633. The cubic root of 725518633 is about 898.5650520372.

The spelling of 725518633 in words is "seven hundred twenty-five million, five hundred eighteen thousand, six hundred thirty-three".