55443249 has 6 divisors (see below), whose sum is σ = 80084706. Its totient is φ = 36962160.

The previous prime is 55443233. The next prime is 55443251. The reversal of 55443249 is 94234455.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 10284849 = 6720^2 + 3207^2 .

It is not a de Polignac number, because 55443249 - 2⁴ = 55443233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55443209) 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 5 ways as a sum of consecutive naturals, for example, 3080172 + ... + 3080189.

It is an arithmetic number, because the mean of its divisors is an integer number (13347451).

Almost surely, 2^55443249 is an apocalyptic number.

It is an amenable number.

55443249 is a deficient number, since it is larger than the sum of its proper divisors (24641457).

55443249 is a wasteful number, since it uses less digits than its factorization.

55443249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160367 (or 6160364 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 55443249 is about 7446.0223609656. The cubic root of 55443249 is about 381.3141229061.

The spelling of 55443249 in words is "fifty-five million, four hundred forty-three thousand, two hundred forty-nine".