55844768 has 72 divisors (see below), whose sum is σ = 129650976. Its totient is φ = 23189760.

The previous prime is 55844717. The next prime is 55844791. The reversal of 55844768 is 86744855.

It is a super-2 number, since 2×55844768² = 6237276225947648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833471 + ... + 833537.

It is an arithmetic number, because the mean of its divisors is an integer number (1800708).

Almost surely, 2^55844768 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 55844768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64825488).

55844768 is an abundant number, since it is smaller than the sum of its proper divisors (73806208).

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

55844768 is an equidigital number, since it uses as much as digits as its factorization.

55844768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 137 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 47.

The square root of 55844768 is about 7472.9357015834. The cubic root of 55844768 is about 382.2323997250.

The spelling of 55844768 in words is "fifty-five million, eight hundred forty-four thousand, seven hundred sixty-eight".