12750055 has 8 divisors (see below), whose sum is σ = 15350832. Its totient is φ = 10166208.

The previous prime is 12750011. The next prime is 12750071. The reversal of 12750055 is 55005721.

It is a happy number.

12750055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12750055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2509 + ... + 5638.

It is an arithmetic number, because the mean of its divisors is an integer number (1918854).

Almost surely, 2^12750055 is an apocalyptic number.

12750055 is a deficient number, since it is larger than the sum of its proper divisors (2600777).

12750055 is an equidigital number, since it uses as much as digits as its factorization.

12750055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8465.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 12750055 is about 3570.7219158036. The cubic root of 12750055 is about 233.6167723363.

Adding to 12750055 its reverse (55005721), we get a palindrome (67755776).

The spelling of 12750055 in words is "twelve million, seven hundred fifty thousand, fifty-five".