725162305 has 16 divisors (see below), whose sum is σ = 1001669760. Its totient is φ = 493673472.

The previous prime is 725162293. The next prime is 725162309. The reversal of 725162305 is 503261527.

It is a cyclic number.

It is not a de Polignac number, because 725162305 - 2⁷ = 725162177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725162309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69664 + ... + 79393.

It is an arithmetic number, because the mean of its divisors is an integer number (62604360).

Almost surely, 2^725162305 is an apocalyptic number.

It is an amenable number.

725162305 is a deficient number, since it is larger than the sum of its proper divisors (276507455).

725162305 is a wasteful number, since it uses less digits than its factorization.

725162305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149208.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 725162305 is about 26928.8377951964. The cubic root of 725162305 is about 898.4179221977.

The spelling of 725162305 in words is "seven hundred twenty-five million, one hundred sixty-two thousand, three hundred five".