12915056 has 60 divisors (see below), whose sum is σ = 31466736. Its totient is φ = 5026560.

The previous prime is 12915043. The next prime is 12915059. The reversal of 12915056 is 65051921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12915059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13076 + ... + 14028.

Almost surely, 2^12915056 is an apocalyptic number.

12915056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12915056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15733368).

12915056 is an abundant number, since it is smaller than the sum of its proper divisors (18551680).

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

12915056 is a wasteful number, since it uses less digits than its factorization.

12915056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 12915056 is about 3593.7523565210. The cubic root of 12915056 is about 234.6202165007.

Adding to 12915056 its reverse (65051921), we get a palindrome (77966977).

The spelling of 12915056 in words is "twelve million, nine hundred fifteen thousand, fifty-six".