12355560 has 96 divisors (see below), whose sum is σ = 45901440. Its totient is φ = 2823552.

The previous prime is 12355559. The next prime is 12355579. The reversal of 12355560 is 6555321.

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 23 ways as a sum of consecutive naturals, for example, 69 + ... + 4971.

It is an arithmetic number, because the mean of its divisors is an integer number (478140).

Almost surely, 2^12355560 is an apocalyptic number.

12355560 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 12355560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22950720).

12355560 is an abundant number, since it is smaller than the sum of its proper divisors (33545880).

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

12355560 is a wasteful number, since it uses less digits than its factorization.

12355560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927 (or 4920 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 12355560 is about 3515.0476525931. The cubic root of 12355560 is about 231.1820681886.

The spelling of 12355560 in words is "twelve million, three hundred fifty-five thousand, five hundred sixty".