55984824 has 128 divisors (see below), whose sum is σ = 180940800. Its totient is φ = 15707520.

The previous prime is 55984793. The next prime is 55984843. The reversal of 55984824 is 42848955.

It is a self number, because there is not a number n which added to its sum of digits gives 55984824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91929 + ... + 92535.

It is an arithmetic number, because the mean of its divisors is an integer number (1413600).

Almost surely, 2^55984824 is an apocalyptic number.

55984824 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55984824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90470400).

55984824 is an abundant number, since it is smaller than the sum of its proper divisors (124955976).

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

55984824 is a wasteful number, since it uses less digits than its factorization.

55984824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 680 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 55984824 is about 7482.3007156890. The cubic root of 55984824 is about 382.5516731420.

The spelling of 55984824 in words is "fifty-five million, nine hundred eighty-four thousand, eight hundred twenty-four".