12425205450 has 96 divisors (see below), whose sum is σ = 35612542080. Its totient is φ = 2808115200.

The previous prime is 12425205437. The next prime is 12425205451. The reversal of 12425205450 is 5450252421.

12425205450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12425205451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26970 + ... + 159930.

It is an arithmetic number, because the mean of its divisors is an integer number (370963980).

Almost surely, 2^12425205450 is an apocalyptic number.

12425205450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12425205450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17806271040).

12425205450 is an abundant number, since it is smaller than the sum of its proper divisors (23187336630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12425205450 is a wasteful number, since it uses less digits than its factorization.

12425205450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133072 (or 133067 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 12425205450 its reverse (5450252421), we get a palindrome (17875457871).

The spelling of 12425205450 in words is "twelve billion, four hundred twenty-five million, two hundred five thousand, four hundred fifty".