12509960 has 32 divisors (see below), whose sum is σ = 29804760. Its totient is φ = 4709376.

The previous prime is 12509951. The next prime is 12509963. The reversal of 12509960 is 6990521.

12509960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12432676 + 77284 = 3526^2 + 278^2 .

It is not an unprimeable number, because it can be changed into a prime (12509963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8519 + ... + 9878.

Almost surely, 2^12509960 is an apocalyptic number.

12509960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12509960 is an abundant number, since it is smaller than the sum of its proper divisors (17294800).

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

12509960 is a wasteful number, since it uses less digits than its factorization.

12509960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18425 (or 18421 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 12509960 is about 3536.9421821681. The cubic root of 12509960 is about 232.1410656159.

The spelling of 12509960 in words is "twelve million, five hundred nine thousand, nine hundred sixty".