320624125 has 16 divisors (see below), whose sum is σ = 409451328. Its totient is φ = 250530000.

The previous prime is 320624123. The next prime is 320624147. The reversal of 320624125 is 521426023.

It is not a de Polignac number, because 320624125 - 2¹ = 320624123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320624125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320624123) 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 15 ways as a sum of consecutive naturals, for example, 24451 + ... + 35200.

It is an arithmetic number, because the mean of its divisors is an integer number (25590708).

Almost surely, 2^320624125 is an apocalyptic number.

It is an amenable number.

320624125 is a deficient number, since it is larger than the sum of its proper divisors (88827203).

320624125 is an equidigital number, since it uses as much as digits as its factorization.

320624125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59709 (or 59699 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 320624125 is about 17905.9801463087. The cubic root of 320624125 is about 684.4347726892.

The spelling of 320624125 in words is "three hundred twenty million, six hundred twenty-four thousand, one hundred twenty-five".