12555165 has 32 divisors (see below), whose sum is σ = 23189760. Its totient is φ = 5681664.

The previous prime is 12555149. The next prime is 12555199. The reversal of 12555165 is 56155521.

It is not a de Polignac number, because 12555165 - 2⁴ = 12555149 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 10897 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (724680).

Almost surely, 2^12555165 is an apocalyptic number.

12555165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12555165 is a deficient number, since it is larger than the sum of its proper divisors (10634595).

12555165 is a wasteful number, since it uses less digits than its factorization.

12555165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221.

The product of its digits is 7500, while the sum is 30.

The square root of 12555165 is about 3543.3268265854. The cubic root of 12555165 is about 232.4203450105.

It can be divided in two parts, 1255516 and 5, that added together give a palindrome (1255521).

The spelling of 12555165 in words is "twelve million, five hundred fifty-five thousand, one hundred sixty-five".