55161834 has 64 divisors (see below), whose sum is σ = 140206080. Its totient is φ = 14074560.

The previous prime is 55161823. The next prime is 55161853. The reversal of 55161834 is 43816155.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55161795 and 55161804.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15297 + ... + 18555.

It is an arithmetic number, because the mean of its divisors is an integer number (2190720).

Almost surely, 2^55161834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55161834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70103040).

55161834 is an abundant number, since it is smaller than the sum of its proper divisors (85044246).

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

55161834 is a wasteful number, since it uses less digits than its factorization.

55161834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315.

The product of its digits is 14400, while the sum is 33.

The square root of 55161834 is about 7427.1013188188. The cubic root of 55161834 is about 380.6678790189.

Adding to 55161834 its reverse (43816155), we get a palindrome (98977989).

The spelling of 55161834 in words is "fifty-five million, one hundred sixty-one thousand, eight hundred thirty-four".