7287945925 has 24 divisors (see below), whose sum is σ = 9806559840. Its totient is φ = 5340753600.

The previous prime is 7287945893. The next prime is 7287945941. The reversal of 7287945925 is 5295497827.

It is not a de Polignac number, because 7287945925 - 2⁵ = 7287945893 is a prime.

It is a super-2 number, since 2×7287945925² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7287945925.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 43015 + ... + 128164.

It is an arithmetic number, because the mean of its divisors is an integer number (408606660).

Almost surely, 2^7287945925 is an apocalyptic number.

It is an amenable number.

7287945925 is a deficient number, since it is larger than the sum of its proper divisors (2518613915).

7287945925 is a wasteful number, since it uses less digits than its factorization.

7287945925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171333 (or 171328 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 58.

The square root of 7287945925 is about 85369.4671706460. The cubic root of 7287945925 is about 1938.8090899118.

The spelling of 7287945925 in words is "seven billion, two hundred eighty-seven million, nine hundred forty-five thousand, nine hundred twenty-five".