725283518 has 8 divisors (see below), whose sum is σ = 1135226448. Its totient is φ = 346874704.

The previous prime is 725283511. The next prime is 725283521. The reversal of 725283518 is 815382527.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725283511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7883471 + ... + 7883562.

It is an arithmetic number, because the mean of its divisors is an integer number (141903306).

Almost surely, 2^725283518 is an apocalyptic number.

725283518 is a deficient number, since it is larger than the sum of its proper divisors (409942930).

725283518 is a wasteful number, since it uses less digits than its factorization.

725283518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15767058.

The product of its digits is 134400, while the sum is 41.

The square root of 725283518 is about 26931.0883181501. The cubic root of 725283518 is about 898.4679771366.

Subtracting 725283518 from its reverse (815382527), we obtain a palindrome (90099009).

The spelling of 725283518 in words is "seven hundred twenty-five million, two hundred eighty-three thousand, five hundred eighteen".