12509570 has 16 divisors (see below), whose sum is σ = 22854528. Its totient is φ = 4928880.

The previous prime is 12509533. The next prime is 12509579. The reversal of 12509570 is 7590521.

12509570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12509579) 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, 8666 + ... + 10005.

It is an arithmetic number, because the mean of its divisors is an integer number (1428408).

Almost surely, 2^12509570 is an apocalyptic number.

12509570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12509570 is a deficient number, since it is larger than the sum of its proper divisors (10344958).

12509570 is a wasteful number, since it uses less digits than its factorization.

12509570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18745.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 12509570 is about 3536.8870493698. The cubic root of 12509570 is about 232.1386532459.

The spelling of 12509570 in words is "twelve million, five hundred nine thousand, five hundred seventy".