12305525525 has 6 divisors (see below), whose sum is σ = 15258851682. Its totient is φ = 9844420400.

The previous prime is 12305525509. The next prime is 12305525563. The reversal of 12305525525 is 52552550321.

It can be written as a sum of positive squares in 3 ways, for example, as 1958770564 + 10346754961 = 44258^2 + 101719^2 .

It is not a de Polignac number, because 12305525525 - 2⁴ = 12305525509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246110486 + ... + 246110535.

It is an arithmetic number, because the mean of its divisors is an integer number (2543141947).

Almost surely, 2^12305525525 is an apocalyptic number.

It is an amenable number.

12305525525 is a deficient number, since it is larger than the sum of its proper divisors (2953326157).

12305525525 is an equidigital number, since it uses as much as digits as its factorization.

12305525525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492221031 (or 492221026 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 12305525525 in words is "twelve billion, three hundred five million, five hundred twenty-five thousand, five hundred twenty-five".