725753306 has 4 divisors (see below), whose sum is σ = 1088629962. Its totient is φ = 362876652.

The previous prime is 725753297. The next prime is 725753363. The reversal of 725753306 is 603357527.

725753306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 725494225 + 259081 = 26935^2 + 509^2 .

It is a super-2 number, since 2×725753306² = 1053435722339859272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725753306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181438325 + ... + 181438328.

Almost surely, 2^725753306 is an apocalyptic number.

725753306 is a deficient number, since it is larger than the sum of its proper divisors (362876656).

725753306 is a wasteful number, since it uses less digits than its factorization.

725753306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362876655.

The product of its (nonzero) digits is 132300, while the sum is 38.

The square root of 725753306 is about 26939.8089451280. The cubic root of 725753306 is about 898.6619235327.

The spelling of 725753306 in words is "seven hundred twenty-five million, seven hundred fifty-three thousand, three hundred six".