12025551305 has 8 divisors (see below), whose sum is σ = 14431389192. Its totient is φ = 9619955968.

The previous prime is 12025551301. The next prime is 12025551353. The reversal of 12025551305 is 50315552021.

It can be written as a sum of positive squares in 4 ways, for example, as 16384 + 12025534921 = 128^2 + 109661^2 .

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 12025551305 - 2² = 12025551301 is a prime.

It is a super-2 number, since 2×12025551305² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12025551301) 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, 76739 + ... + 173031.

It is an arithmetic number, because the mean of its divisors is an integer number (1803923649).

Almost surely, 2^12025551305 is an apocalyptic number.

It is an amenable number.

12025551305 is a deficient number, since it is larger than the sum of its proper divisors (2405837887).

12025551305 is an equidigital number, since it uses as much as digits as its factorization.

12025551305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121275.

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 12025551305 in words is "twelve billion, twenty-five million, five hundred fifty-one thousand, three hundred five".