12705055 has 8 divisors (see below), whose sum is σ = 16632144. Its totient is φ = 9240000.

The previous prime is 12705041. The next prime is 12705061. The reversal of 12705055 is 55050721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12705055 - 2⁷ = 12704927 is a prime.

It is a super-2 number, since 2×12705055² = 322836845106050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115446 + ... + 115555.

It is an arithmetic number, because the mean of its divisors is an integer number (2079018).

Almost surely, 2^12705055 is an apocalyptic number.

12705055 is a deficient number, since it is larger than the sum of its proper divisors (3927089).

12705055 is a wasteful number, since it uses less digits than its factorization.

12705055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231017.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 12705055 is about 3564.4150992835. The cubic root of 12705055 is about 233.3416062826.

Adding to 12705055 its reverse (55050721), we get a palindrome (67755776).

The spelling of 12705055 in words is "twelve million, seven hundred five thousand, fifty-five".