55112689 has 8 divisors (see below), whose sum is σ = 55796840. Its totient is φ = 54432000.

The previous prime is 55112677. The next prime is 55112693. The reversal of 55112689 is 98621155.

It can be written as a sum of positive squares in 4 ways, for example, as 3027600 + 52085089 = 1740^2 + 7217^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55112689 - 2¹¹ = 55110641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55112639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45289 + ... + 46489.

It is an arithmetic number, because the mean of its divisors is an integer number (6974605).

Almost surely, 2^55112689 is an apocalyptic number.

It is an amenable number.

55112689 is a deficient number, since it is larger than the sum of its proper divisors (684151).

55112689 is a wasteful number, since it uses less digits than its factorization.

55112689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731.

The product of its digits is 21600, while the sum is 37.

The square root of 55112689 is about 7423.7920902999. The cubic root of 55112689 is about 380.5547967173.

The spelling of 55112689 in words is "fifty-five million, one hundred twelve thousand, six hundred eighty-nine".