55105422 has 16 divisors (see below), whose sum is σ = 110289792. Its totient is φ = 18355320.

The previous prime is 55105397. The next prime is 55105429. The reversal of 55105422 is 22450155.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55105392 and 55105401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105429) 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, 9783 + ... + 14349.

It is an arithmetic number, because the mean of its divisors is an integer number (6893112).

Almost surely, 2^55105422 is an apocalyptic number.

55105422 is an abundant number, since it is smaller than the sum of its proper divisors (55184370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55105422 is a wasteful number, since it uses less digits than its factorization.

55105422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6583.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55105422 is about 7423.3026342727. The cubic root of 55105422 is about 380.5380696966.

Adding to 55105422 its reverse (22450155), we get a palindrome (77555577).

The spelling of 55105422 in words is "fifty-five million, one hundred five thousand, four hundred twenty-two".