55443250 has 16 divisors (see below), whose sum is σ = 103790232. Its totient is φ = 22177200.

The previous prime is 55443233. The next prime is 55443251. The reversal of 55443250 is 5234455.

It can be written as a sum of positive squares in 4 ways, for example, as 17114769 + 38328481 = 4137^2 + 6191^2 .

It is not an unprimeable number, because it can be changed into a prime (55443251) 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 7 ways as a sum of consecutive naturals, for example, 110637 + ... + 111136.

Almost surely, 2^55443250 is an apocalyptic number.

55443250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55443250 is a deficient number, since it is larger than the sum of its proper divisors (48346982).

55443250 is a wasteful number, since it uses less digits than its factorization.

55443250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221790 (or 221780 counting only the distinct ones).

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

The square root of 55443250 is about 7446.0224281156. The cubic root of 55443250 is about 381.3141251987.

The spelling of 55443250 in words is "fifty-five million, four hundred forty-three thousand, two hundred fifty".