12750056 has 16 divisors (see below), whose sum is σ = 26079840. Its totient is φ = 5795440.

The previous prime is 12750011. The next prime is 12750071. The reversal of 12750056 is 65005721.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72356 + ... + 72531.

It is an arithmetic number, because the mean of its divisors is an integer number (1629990).

Almost surely, 2^12750056 is an apocalyptic number.

It is an amenable number.

12750056 is an abundant number, since it is smaller than the sum of its proper divisors (13329784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12750056 is a wasteful number, since it uses less digits than its factorization.

12750056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144904 (or 144900 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 12750056 is about 3570.7220558313. The cubic root of 12750056 is about 233.6167784439.

Adding to 12750056 its reverse (65005721), we get a palindrome (77755777).

The spelling of 12750056 in words is "twelve million, seven hundred fifty thousand, fifty-six".