725318319 has 8 divisors (see below), whose sum is σ = 1055008512. Its totient is φ = 439586840.

The previous prime is 725318299. The next prime is 725318323. The reversal of 725318319 is 913813527.

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

It is not a de Polignac number, because 725318319 - 2⁹ = 725317807 is a prime.

It is a super-2 number, since 2×725318319² = 1052173327753971522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725318339) 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, 10989639 + ... + 10989704.

It is an arithmetic number, because the mean of its divisors is an integer number (131876064).

Almost surely, 2^725318319 is an apocalyptic number.

725318319 is a deficient number, since it is larger than the sum of its proper divisors (329690193).

725318319 is a wasteful number, since it uses less digits than its factorization.

725318319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21979357.

The product of its digits is 45360, while the sum is 39.

The square root of 725318319 is about 26931.7344224244. The cubic root of 725318319 is about 898.4823471878.

The spelling of 725318319 in words is "seven hundred twenty-five million, three hundred eighteen thousand, three hundred nineteen".