12550223520 has 288 divisors, whose sum is σ = 46539118080. Its totient is φ = 3068098560.

The previous prime is 12550223471. The next prime is 12550223561. The reversal of 12550223520 is 2532205521.

12550223520 is a `hidden beast` number, since 125 + 502 + 2 + 35 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×12550223520² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 840762 + ... + 855558.

It is an arithmetic number, because the mean of its divisors is an integer number (161594160).

Almost surely, 2^12550223520 is an apocalyptic number.

12550223520 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 12550223520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23269559040).

12550223520 is an abundant number, since it is smaller than the sum of its proper divisors (33988894560).

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

12550223520 is a wasteful number, since it uses less digits than its factorization.

12550223520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14868 (or 14857 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 12550223520 in words is "twelve billion, five hundred fifty million, two hundred twenty-three thousand, five hundred twenty".