55841436 has 144 divisors (see below), whose sum is σ = 170299584. Its totient is φ = 15095808.

The previous prime is 55841411. The next prime is 55841449. The reversal of 55841436 is 63414855.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55841436.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 494116 + ... + 494228.

It is an arithmetic number, because the mean of its divisors is an integer number (1182636).

Almost surely, 2^55841436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55841436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85149792).

55841436 is an abundant number, since it is smaller than the sum of its proper divisors (114458148).

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

55841436 is a wasteful number, since it uses less digits than its factorization.

55841436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 215 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 55841436 is about 7472.7127604371. The cubic root of 55841436 is about 382.2247975584.

The spelling of 55841436 in words is "fifty-five million, eight hundred forty-one thousand, four hundred thirty-six".