12503456 has 24 divisors (see below), whose sum is σ = 28133280. Its totient is φ = 5358528.

The previous prime is 12503441. The next prime is 12503461. The reversal of 12503456 is 65430521.

12503456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 27686 + ... + 28133.

It is an arithmetic number, because the mean of its divisors is an integer number (1172220).

Almost surely, 2^12503456 is an apocalyptic number.

12503456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12503456 is an abundant number, since it is smaller than the sum of its proper divisors (15629824).

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

12503456 is an equidigital number, since it uses as much as digits as its factorization.

12503456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55836 (or 55828 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 12503456 is about 3536.0226243620. The cubic root of 12503456 is about 232.1008281511.

Adding to 12503456 its reverse (65430521), we get a palindrome (77933977).

The spelling of 12503456 in words is "twelve million, five hundred three thousand, four hundred fifty-six".