12552500 has 30 divisors (see below), whose sum is σ = 27455274. Its totient is φ = 5020000.

The previous prime is 12552499. The next prime is 12552541. The reversal of 12552500 is 525521.

It can be written as a sum of positive squares in 5 ways, for example, as 2274064 + 10278436 = 1508^2 + 3206^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 11 + ... + 5010.

Almost surely, 2^12552500 is an apocalyptic number.

12552500 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 12552500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13727637).

12552500 is an abundant number, since it is smaller than the sum of its proper divisors (14902774).

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

12552500 is an equidigital number, since it uses as much as digits as its factorization.

12552500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045 (or 5028 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 12552500 is about 3542.9507476114. The cubic root of 12552500 is about 232.4038990817.

It can be divided in two parts, 125 and 52500, that added together give a palindrome (52625).

The spelling of 12552500 in words is "twelve million, five hundred fifty-two thousand, five hundred".