12515648 has 28 divisors (see below), whose sum is σ = 25005792. Its totient is φ = 6215040.

The previous prime is 12515647. The next prime is 12515651. The reversal of 12515648 is 84651521.

It is a super-3 number, since 3×12515648³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10103 + ... + 11273.

It is an arithmetic number, because the mean of its divisors is an integer number (893064).

Almost surely, 2^12515648 is an apocalyptic number.

It is an amenable number.

12515648 is a deficient number, since it is larger than the sum of its proper divisors (12490144).

12515648 is a wasteful number, since it uses less digits than its factorization.

12515648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350 (or 1340 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 12515648 is about 3537.7461751799. The cubic root of 12515648 is about 232.1762434079.

The spelling of 12515648 in words is "twelve million, five hundred fifteen thousand, six hundred forty-eight".