55788384 has 48 divisors (see below), whose sum is σ = 146830320. Its totient is φ = 18547200.

The previous prime is 55788377. The next prime is 55788391. The reversal of 55788384 is 48388755.

It is an interprime number because it is at equal distance from previous prime (55788377) and next prime (55788391).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×55788384² = 6224687578662912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66882 + ... + 67710.

It is an arithmetic number, because the mean of its divisors is an integer number (3058965).

Almost surely, 2^55788384 is an apocalyptic number.

It is an amenable number.

55788384 is an abundant number, since it is smaller than the sum of its proper divisors (91041936).

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

55788384 is a wasteful number, since it uses less digits than its factorization.

55788384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1535 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 55788384 is about 7469.1622020144. The cubic root of 55788384 is about 382.1037153393.

The spelling of 55788384 in words is "fifty-five million, seven hundred eighty-eight thousand, three hundred eighty-four".