12507570 has 48 divisors (see below), whose sum is σ = 33576192. Its totient is φ = 3227040.

The previous prime is 12507559. The next prime is 12507571. The reversal of 12507570 is 7570521.

It is not an unprimeable number, because it can be changed into a prime (12507571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549 + ... + 5031.

It is an arithmetic number, because the mean of its divisors is an integer number (699504).

Almost surely, 2^12507570 is an apocalyptic number.

12507570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12507570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16788096).

12507570 is an abundant number, since it is smaller than the sum of its proper divisors (21068622).

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

12507570 is a wasteful number, since it uses less digits than its factorization.

12507570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 12507570 is about 3536.6043035658. The cubic root of 12507570 is about 232.1262813298.

The spelling of 12507570 in words is "twelve million, five hundred seven thousand, five hundred seventy".