55574844 has 48 divisors (see below), whose sum is σ = 143072160. Its totient is φ = 16680960.

The previous prime is 55574833. The next prime is 55574863. The reversal of 55574844 is 44847555.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55574796 and 55574805.

It is a congruent number.

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, 2052 + ... + 10740.

It is an arithmetic number, because the mean of its divisors is an integer number (2980670).

Almost surely, 2^55574844 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 55574844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71536080).

55574844 is an abundant number, since it is smaller than the sum of its proper divisors (87497316).

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

55574844 is a wasteful number, since it uses less digits than its factorization.

55574844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8750 (or 8748 counting only the distinct ones).

The product of its digits is 448000, while the sum is 42.

The square root of 55574844 is about 7454.8537208989. The cubic root of 55574844 is about 381.6155685890.

It can be divided in two parts, 5557 and 4844, that added together give a palindrome (10401).

The spelling of 55574844 in words is "fifty-five million, five hundred seventy-four thousand, eight hundred forty-four".