55861344 has 216 divisors, whose sum is σ = 200425680. Its totient is φ = 14446080.

The previous prime is 55861327. The next prime is 55861357. The reversal of 55861344 is 44316855.

It is a happy number.

55861344 is a `hidden beast` number, since 558 + 61 + 3 + 44 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 55861299 and 55861308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 243822 + ... + 244050.

Almost surely, 2^55861344 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 55861344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100212840).

55861344 is an abundant number, since it is smaller than the sum of its proper divisors (144564336).

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

55861344 is a wasteful number, since it uses less digits than its factorization.

55861344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 252 counting only the distinct ones).

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

The square root of 55861344 is about 7474.0446881190. The cubic root of 55861344 is about 382.2702144133.

The spelling of 55861344 in words is "fifty-five million, eight hundred sixty-one thousand, three hundred forty-four".