55115122 has 8 divisors (see below), whose sum is σ = 87535836. Its totient is φ = 25936512.

The previous prime is 55115083. The next prime is 55115129. The reversal of 55115122 is 22151155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54893281 + 221841 = 7409^2 + 471^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 55115093 and 55115102.

It is not an unprimeable number, because it can be changed into a prime (55115129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810483 + ... + 810550.

Almost surely, 2^55115122 is an apocalyptic number.

55115122 is a deficient number, since it is larger than the sum of its proper divisors (32420714).

55115122 is a wasteful number, since it uses less digits than its factorization.

55115122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621052.

The product of its digits is 500, while the sum is 22.

The square root of 55115122 is about 7423.9559535331. The cubic root of 55115122 is about 380.5603966146.

Adding to 55115122 its reverse (22151155), we get a palindrome (77266277).

The spelling of 55115122 in words is "fifty-five million, one hundred fifteen thousand, one hundred twenty-two".