12655950 has 48 divisors (see below), whose sum is σ = 31664640. Its totient is φ = 3345120.

The previous prime is 12655949. The next prime is 12655969. The reversal of 12655950 is 5955621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20547 + ... + 21153.

It is an arithmetic number, because the mean of its divisors is an integer number (659680).

Almost surely, 2^12655950 is an apocalyptic number.

12655950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12655950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15832320).

12655950 is an abundant number, since it is smaller than the sum of its proper divisors (19008690).

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

12655950 is a wasteful number, since it uses less digits than its factorization.

12655950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 12655950 is about 3557.5202037374. The cubic root of 12655950 is about 233.0405966090.

The spelling of 12655950 in words is "twelve million, six hundred fifty-five thousand, nine hundred fifty".