12555270 has 192 divisors, whose sum is σ = 42517440. Its totient is φ = 2612736.

The previous prime is 12555241. The next prime is 12555281. The reversal of 12555270 is 7255521.

It is a happy number.

12555270 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 is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 171954 + ... + 172026.

It is an arithmetic number, because the mean of its divisors is an integer number (221445).

Almost surely, 2^12555270 is an apocalyptic number.

12555270 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 12555270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21258720).

12555270 is an abundant number, since it is smaller than the sum of its proper divisors (29962170).

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

12555270 is a wasteful number, since it uses less digits than its factorization.

12555270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 12555270 is about 3543.3416431386. The cubic root of 12555270 is about 232.4209929263.

The spelling of 12555270 in words is "twelve million, five hundred fifty-five thousand, two hundred seventy".