12550454400 has 384 divisors, whose sum is σ = 45443252160. Its totient is φ = 3019161600.

The previous prime is 12550454311. The next prime is 12550454429. The reversal of 12550454400 is 445405521.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16578822 + ... + 16579578.

Almost surely, 2^12550454400 is an apocalyptic number.

12550454400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12550454400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22721626080).

12550454400 is an abundant number, since it is smaller than the sum of its proper divisors (32892797760).

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

12550454400 is a wasteful number, since it uses less digits than its factorization.

12550454400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 935 counting only the distinct ones).

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

Adding to 12550454400 its reverse (445405521), we get a palindrome (12995859921).

The spelling of 12550454400 in words is "twelve billion, five hundred fifty million, four hundred fifty-four thousand, four hundred".