55433984 has 36 divisors (see below), whose sum is σ = 112092960. Its totient is φ = 27356160.

The previous prime is 55433977. The next prime is 55433999. The reversal of 55433984 is 48933455.

It is a super-2 number, since 2×55433984² = 6145853164224512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18854 + ... + 21594.

Almost surely, 2^55433984 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 55433984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56046480).

55433984 is an abundant number, since it is smaller than the sum of its proper divisors (56658976).

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

55433984 is an equidigital number, since it uses as much as digits as its factorization.

55433984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836 (or 2822 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 55433984 is about 7445.4001907218. The cubic root of 55433984 is about 381.2928815334.

The spelling of 55433984 in words is "fifty-five million, four hundred thirty-three thousand, nine hundred eighty-four".