15005225 has 12 divisors (see below), whose sum is σ = 18694860. Its totient is φ = 11947200.

The previous prime is 15005219. The next prime is 15005227. The reversal of 15005225 is 52250051.

It can be written as a sum of positive squares in 6 ways, for example, as 1263376 + 13741849 = 1124^2 + 3707^2 .

It is not a de Polignac number, because 15005225 - 2⁶ = 15005161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15005197 and 15005206.

It is not an unprimeable number, because it can be changed into a prime (15005227) 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 11 ways as a sum of consecutive naturals, for example, 4415 + ... + 7035.

It is an arithmetic number, because the mean of its divisors is an integer number (1557905).

Almost surely, 2^15005225 is an apocalyptic number.

It is an amenable number.

15005225 is a deficient number, since it is larger than the sum of its proper divisors (3689635).

15005225 is a wasteful number, since it uses less digits than its factorization.

15005225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860 (or 2855 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 15005225 is about 3873.6578320755. The cubic root of 15005225 is about 246.6498395712.

Adding to 15005225 its reverse (52250051), we get a palindrome (67255276).

The spelling of 15005225 in words is "fifteen million, five thousand, two hundred twenty-five".