12617055 has 48 divisors (see below), whose sum is σ = 24261120. Its totient is φ = 6014400.

The previous prime is 12617051. The next prime is 12617071. The reversal of 12617055 is 55071621.

It is not a de Polignac number, because 12617055 - 2² = 12617051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12617051) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 34966 + ... + 35324.

It is an arithmetic number, because the mean of its divisors is an integer number (505440).

Almost surely, 2^12617055 is an apocalyptic number.

12617055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12617055 is a deficient number, since it is larger than the sum of its proper divisors (11644065).

12617055 is a wasteful number, since it uses less digits than its factorization.

12617055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 12617055 is about 3552.0494084401. The cubic root of 12617055 is about 232.8016203345.

Adding to 12617055 its reverse (55071621), we get a palindrome (67688676).

The spelling of 12617055 in words is "twelve million, six hundred seventeen thousand, fifty-five".