1500305225 has 6 divisors (see below), whose sum is σ = 1860378510. Its totient is φ = 1200244160.

The previous prime is 1500305201. The next prime is 1500305239. The reversal of 1500305225 is 5225030051.

It can be written as a sum of positive squares in 3 ways, for example, as 3853369 + 1496451856 = 1963^2 + 38684^2 .

It is not a de Polignac number, because 1500305225 - 2⁸ = 1500304969 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1500305225.

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 5 ways as a sum of consecutive naturals, for example, 30006080 + ... + 30006129.

It is an arithmetic number, because the mean of its divisors is an integer number (310063085).

Almost surely, 2^1500305225 is an apocalyptic number.

It is an amenable number.

1500305225 is a deficient number, since it is larger than the sum of its proper divisors (360073285).

1500305225 is an equidigital number, since it uses as much as digits as its factorization.

1500305225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60012219 (or 60012214 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1500305225 is about 38733.7736994474. The cubic root of 1500305225 is about 1144.7918807108.

Adding to 1500305225 its reverse (5225030051), we get a palindrome (6725335276).

The spelling of 1500305225 in words is "one billion, five hundred million, three hundred five thousand, two hundred twenty-five".