55443052 has 48 divisors (see below), whose sum is σ = 118117440. Its totient is φ = 22228992.

The previous prime is 55443023. The next prime is 55443053. The reversal of 55443052 is 25034455.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 55443052.

It is not an unprimeable number, because it can be changed into a prime (55443053) 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 15 ways as a sum of consecutive naturals, for example, 127828 + ... + 128260.

It is an arithmetic number, because the mean of its divisors is an integer number (2460780).

Almost surely, 2^55443052 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 55443052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59058720).

55443052 is an abundant number, since it is smaller than the sum of its proper divisors (62674388).

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

55443052 is a wasteful number, since it uses less digits than its factorization.

55443052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55443052 is about 7446.0091324145. The cubic root of 55443052 is about 381.3136712793.

The spelling of 55443052 in words is "fifty-five million, four hundred forty-three thousand, fifty-two".