12525305505 has 8 divisors (see below), whose sum is σ = 20040488832. Its totient is φ = 6680162928.

The previous prime is 12525305501. The next prime is 12525305539. The reversal of 12525305505 is 50550352521.

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

It is not a de Polignac number, because 12525305505 - 2² = 12525305501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12525305501) 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, 417510169 + ... + 417510198.

It is an arithmetic number, because the mean of its divisors is an integer number (2505061104).

Almost surely, 2^12525305505 is an apocalyptic number.

12525305505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12525305505 is a deficient number, since it is larger than the sum of its proper divisors (7515183327).

12525305505 is an equidigital number, since it uses as much as digits as its factorization.

12525305505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835020375.

The product of its (nonzero) digits is 37500, while the sum is 33.

The spelling of 12525305505 in words is "twelve billion, five hundred twenty-five million, three hundred five thousand, five hundred five".