12750525 has 36 divisors (see below), whose sum is σ = 23236980. Its totient is φ = 6681600.

The previous prime is 12750523. The next prime is 12750559. The reversal of 12750525 is 52505721.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6140484 + 6610041 = 2478^2 + 2571^2 .

It is not a de Polignac number, because 12750525 - 2¹ = 12750523 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12750523) 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 35 ways as a sum of consecutive naturals, for example, 13261 + ... + 14189.

Almost surely, 2^12750525 is an apocalyptic number.

12750525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12750525 is a deficient number, since it is larger than the sum of its proper divisors (10486455).

12750525 is a wasteful number, since it uses less digits than its factorization.

12750525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 12750525 is about 3570.7877282191. The cubic root of 12750525 is about 233.6196428739.

The spelling of 12750525 in words is "twelve million, seven hundred fifty thousand, five hundred twenty-five".