12444204525 has 24 divisors (see below), whose sum is σ = 20822313120. Its totient is φ = 6556943040.

The previous prime is 12444204511. The next prime is 12444204541. The reversal of 12444204525 is 52540244421.

It is not a de Polignac number, because 12444204525 - 2⁷ = 12444204397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 993310 + ... + 1005759.

It is an arithmetic number, because the mean of its divisors is an integer number (867596380).

Almost surely, 2^12444204525 is an apocalyptic number.

12444204525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12444204525 is a deficient number, since it is larger than the sum of its proper divisors (8378108595).

12444204525 is a wasteful number, since it uses less digits than its factorization.

12444204525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999165 (or 1999160 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 33.

Adding to 12444204525 its reverse (52540244421), we get a palindrome (64984448946).

The spelling of 12444204525 in words is "twelve billion, four hundred forty-four million, two hundred four thousand, five hundred twenty-five".