55443234 has 64 divisors (see below), whose sum is σ = 141668352. Its totient is φ = 14044800.

The previous prime is 55443233. The next prime is 55443251. The reversal of 55443234 is 43234455.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55443233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17479 + ... + 20405.

It is an arithmetic number, because the mean of its divisors is an integer number (2213568).

Almost surely, 2^55443234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55443234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70834176).

55443234 is an abundant number, since it is smaller than the sum of its proper divisors (86225118).

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

55443234 is a wasteful number, since it uses less digits than its factorization.

55443234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991.

The product of its digits is 28800, while the sum is 30.

The square root of 55443234 is about 7446.0213537164. The cubic root of 55443234 is about 381.3140885184.

Adding to 55443234 its reverse (43234455), we get a palindrome (98677689).

It can be divided in two parts, 5544 and 3234, that added together give a palindrome (8778).

The spelling of 55443234 in words is "fifty-five million, four hundred forty-three thousand, two hundred thirty-four".