12525442609 has 8 divisors (see below), whose sum is σ = 12828527712. Its totient is φ = 12222893760.

The previous prime is 12525442571. The next prime is 12525442621. The reversal of 12525442609 is 90624452521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12525442609 - 2¹³ = 12525434417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12525442109) 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, 86584 + ... + 180409.

It is an arithmetic number, because the mean of its divisors is an integer number (1603565964).

Almost surely, 2^12525442609 is an apocalyptic number.

It is an amenable number.

12525442609 is a deficient number, since it is larger than the sum of its proper divisors (303085103).

12525442609 is a wasteful number, since it uses less digits than its factorization.

12525442609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268127.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 12525442609 in words is "twelve billion, five hundred twenty-five million, four hundred forty-two thousand, six hundred nine".