12550380 has 24 divisors (see below), whose sum is σ = 35141232. Its totient is φ = 3346752.

The previous prime is 12550357. The next prime is 12550411. The reversal of 12550380 is 8305521.

It is a self number, because there is not a number n which added to its sum of digits gives 12550380.

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 7 ways as a sum of consecutive naturals, for example, 104527 + ... + 104646.

It is an arithmetic number, because the mean of its divisors is an integer number (1464218).

Almost surely, 2^12550380 is an apocalyptic number.

12550380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12550380 is an abundant number, since it is smaller than the sum of its proper divisors (22590852).

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

12550380 is a wasteful number, since it uses less digits than its factorization.

12550380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209185 (or 209183 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12550380 is about 3542.6515493342. The cubic root of 12550380 is about 232.3908147292.

It can be divided in two parts, 125 and 50380, that added together give a palindrome (50505).

The spelling of 12550380 in words is "twelve million, five hundred fifty thousand, three hundred eighty".