12503056 has 20 divisors (see below), whose sum is σ = 24370092. Its totient is φ = 6214016.

The previous prime is 12503047. The next prime is 12503059. The reversal of 12503056 is 65030521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4752400 + 7750656 = 2180^2 + 2784^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12503059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510 + ... + 5026.

Almost surely, 2^12503056 is an apocalyptic number.

12503056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12503056 is a deficient number, since it is larger than the sum of its proper divisors (11867036).

12503056 is a wasteful number, since it uses less digits than its factorization.

12503056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4698 (or 4692 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 12503056 is about 3535.9660631856. The cubic root of 12503056 is about 232.0983530669.

Adding to 12503056 its reverse (65030521), we get a palindrome (77533577).

The spelling of 12503056 in words is "twelve million, five hundred three thousand, fifty-six".