725349658506 has 16 divisors (see below), whose sum is σ = 1582581073248. Its totient is φ = 219802926800.

The previous prime is 725349658499. The next prime is 725349658559. The reversal of 725349658506 is 605856943527.

725349658506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×725349658506² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725349658506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5495073105 + ... + 5495073236.

It is an arithmetic number, because the mean of its divisors is an integer number (98911317078).

Almost surely, 2^725349658506 is an apocalyptic number.

725349658506 is an abundant number, since it is smaller than the sum of its proper divisors (857231414742).

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

725349658506 is a wasteful number, since it uses less digits than its factorization.

725349658506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10990146357.

The product of its (nonzero) digits is 54432000, while the sum is 60.

The spelling of 725349658506 in words is "seven hundred twenty-five billion, three hundred forty-nine million, six hundred fifty-eight thousand, five hundred six".