725235307 has 4 divisors (see below), whose sum is σ = 725291856. Its totient is φ = 725178760.

The previous prime is 725235289. The next prime is 725235349. The reversal of 725235307 is 703532527.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 725235307 - 2¹⁵ = 725202539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725235107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218 + ... + 38104.

It is an arithmetic number, because the mean of its divisors is an integer number (181322964).

Almost surely, 2^725235307 is an apocalyptic number.

725235307 is a deficient number, since it is larger than the sum of its proper divisors (56549).

725235307 is a wasteful number, since it uses less digits than its factorization.

725235307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56548.

The product of its (nonzero) digits is 44100, while the sum is 34.

The square root of 725235307 is about 26930.1932224780. The cubic root of 725235307 is about 898.4480690600.

The spelling of 725235307 in words is "seven hundred twenty-five million, two hundred thirty-five thousand, three hundred seven".