55803384 has 256 divisors, whose sum is σ = 203212800. Its totient is φ = 13768704.

The previous prime is 55803383. The next prime is 55803403. The reversal of 55803384 is 48330855.

It is a super-2 number, since 2×55803384² = 6228035331702912, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55803383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 334069 + ... + 334235.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^55803384 is an apocalyptic number.

55803384 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 55803384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101606400).

55803384 is an abundant number, since it is smaller than the sum of its proper divisors (147409416).

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

55803384 is a wasteful number, since it uses less digits than its factorization.

55803384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 209 counting only the distinct ones).

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

The square root of 55803384 is about 7470.1662632099. The cubic root of 55803384 is about 382.1379580837.

The spelling of 55803384 in words is "fifty-five million, eight hundred three thousand, three hundred eighty-four".