12550500 has 72 divisors (see below), whose sum is σ = 39606840. Its totient is φ = 3345600.

The previous prime is 12550481. The next prime is 12550501. The reversal of 12550500 is 505521.

12550500 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 272484 + 12278016 = 522^2 + 3504^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12550501) 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, 3106 + ... + 5894.

It is an arithmetic number, because the mean of its divisors is an integer number (550095).

Almost surely, 2^12550500 is an apocalyptic number.

12550500 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 12550500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19803420).

12550500 is an abundant number, since it is smaller than the sum of its proper divisors (27056340).

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

12550500 is a wasteful number, since it uses less digits than its factorization.

12550500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814 (or 2799 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 12550500 is about 3542.6684857604. The cubic root of 12550500 is about 232.3915553922.

It can be divided in two parts, 125 and 50500, that added together give a 4-th power (50625 = 15⁴).

The spelling of 12550500 in words is "twelve million, five hundred fifty thousand, five hundred".