55396824 has 64 divisors (see below), whose sum is σ = 159168000. Its totient is φ = 15738624.

The previous prime is 55396823. The next prime is 55396843. The reversal of 55396824 is 42869355.

55396824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55396823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32604 + ... + 34260.

It is an arithmetic number, because the mean of its divisors is an integer number (2487000).

Almost surely, 2^55396824 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 55396824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79584000).

55396824 is an abundant number, since it is smaller than the sum of its proper divisors (103771176).

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

55396824 is a wasteful number, since it uses less digits than its factorization.

55396824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1868 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 55396824 is about 7442.9042718552. The cubic root of 55396824 is about 381.2076629866.

The spelling of 55396824 in words is "fifty-five million, three hundred ninety-six thousand, eight hundred twenty-four".