55443504 has 40 divisors (see below), whose sum is σ = 144556720. Its totient is φ = 18309888.

The previous prime is 55443497. The next prime is 55443517. The reversal of 55443504 is 40534455.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67 + ... + 10530.

It is an arithmetic number, because the mean of its divisors is an integer number (3613918).

Almost surely, 2^55443504 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 55443504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72278360).

55443504 is an abundant number, since it is smaller than the sum of its proper divisors (89113216).

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

55443504 is a wasteful number, since it uses less digits than its factorization.

55443504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10717 (or 10711 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 55443504 is about 7446.0394841822. The cubic root of 55443504 is about 381.3147074976.

Adding to 55443504 its reverse (40534455), we get a palindrome (95977959).

The spelling of 55443504 in words is "fifty-five million, four hundred forty-three thousand, five hundred four".