55122686 has 16 divisors (see below), whose sum is σ = 87291600. Its totient is φ = 26034048.

The previous prime is 55122677. The next prime is 55122713. The reversal of 55122686 is 68622155.

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, 12230 + ... + 16118.

It is an arithmetic number, because the mean of its divisors is an integer number (5455725).

Almost surely, 2^55122686 is an apocalyptic number.

55122686 is a deficient number, since it is larger than the sum of its proper divisors (32168914).

55122686 is a wasteful number, since it uses less digits than its factorization.

55122686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4283.

The product of its digits is 28800, while the sum is 35.

The square root of 55122686 is about 7424.4653679575. The cubic root of 55122686 is about 380.5778051893.

The spelling of 55122686 in words is "fifty-five million, one hundred twenty-two thousand, six hundred eighty-six".