55000842 has 32 divisors (see below), whose sum is σ = 119351232. Its totient is φ = 16796544.

The previous prime is 55000811. The next prime is 55000871. The reversal of 55000842 is 24800055.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8113 + ... + 13259.

It is an arithmetic number, because the mean of its divisors is an integer number (3729726).

Almost surely, 2^55000842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55000842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59675616).

55000842 is an abundant number, since it is smaller than the sum of its proper divisors (64350390).

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

55000842 is a wasteful number, since it uses less digits than its factorization.

55000842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 55000842 is about 7416.2552545068. The cubic root of 55000842 is about 380.2971867244.

Adding to 55000842 its reverse (24800055), we get a palindrome (79800897).

The spelling of 55000842 in words is "fifty-five million, eight hundred forty-two", and thus it is an aban number.