12105575025 has 24 divisors (see below), whose sum is σ = 20032512480. Its totient is φ = 6450512640.

The previous prime is 12105575023. The next prime is 12105575029. The reversal of 12105575025 is 52057550121.

It is not a de Polignac number, because 12105575025 - 2¹ = 12105575023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12105575023) 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, 12361 + ... + 156089.

It is an arithmetic number, because the mean of its divisors is an integer number (834688020).

Almost surely, 2^12105575025 is an apocalyptic number.

12105575025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12105575025 is a deficient number, since it is larger than the sum of its proper divisors (7926937455).

12105575025 is a wasteful number, since it uses less digits than its factorization.

12105575025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144865 (or 144860 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 33.

The spelling of 12105575025 in words is "twelve billion, one hundred five million, five hundred seventy-five thousand, twenty-five".