12501056 has 14 divisors (see below), whose sum is σ = 24806910. Its totient is φ = 6250496.

The previous prime is 12501053. The next prime is 12501067. The reversal of 12501056 is 65010521.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 1478656 = 3320^2 + 1216^2 .

It is a super-2 number, since 2×12501056² = 312552802230272, which contains 22 as substring.

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 (12501053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97601 + ... + 97728.

Almost surely, 2^12501056 is an apocalyptic number.

12501056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12501056 is a deficient number, since it is larger than the sum of its proper divisors (12305854).

12501056 is an equidigital number, since it uses as much as digits as its factorization.

12501056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195341 (or 195331 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 12501056 is about 3535.6832437310. The cubic root of 12501056 is about 232.0859768537.

Adding to 12501056 its reverse (65010521), we get a palindrome (77511577).

The spelling of 12501056 in words is "twelve million, five hundred one thousand, fifty-six".