725797518 has 16 divisors (see below), whose sum is σ = 1454025600. Its totient is φ = 241527416.

The previous prime is 725797493. The next prime is 725797519. The reversal of 725797518 is 815797527.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725797519) 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, 97380 + ... + 104567.

It is an arithmetic number, because the mean of its divisors is an integer number (90876600).

Almost surely, 2^725797518 is an apocalyptic number.

725797518 is an abundant number, since it is smaller than the sum of its proper divisors (728228082).

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

725797518 is a wasteful number, since it uses less digits than its factorization.

725797518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202551.

The product of its digits is 1234800, while the sum is 51.

The square root of 725797518 is about 26940.6295026675. The cubic root of 725797518 is about 898.6801716224.

Subtracting 725797518 from its reverse (815797527), we obtain a palindrome (90000009).

The spelling of 725797518 in words is "seven hundred twenty-five million, seven hundred ninety-seven thousand, five hundred eighteen".