725382818 has 8 divisors (see below), whose sum is σ = 1088648748. Its totient is φ = 362499904.

The previous prime is 725382811. The next prime is 725382923. The reversal of 725382818 is 818283527.

It can be written as a sum of positive squares in 2 ways, for example, as 712516249 + 12866569 = 26693^2 + 3587^2 .

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

It is a super-3 number, since 3×725382818³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (725382811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90971 + ... + 98622.

Almost surely, 2^725382818 is an apocalyptic number.

725382818 is a deficient number, since it is larger than the sum of its proper divisors (363265930).

725382818 is a wasteful number, since it uses less digits than its factorization.

725382818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191508.

The product of its digits is 215040, while the sum is 44.

The square root of 725382818 is about 26932.9318493179. The cubic root of 725382818 is about 898.5089789409.

The spelling of 725382818 in words is "seven hundred twenty-five million, three hundred eighty-two thousand, eight hundred eighteen".