55444293 has 12 divisors (see below), whose sum is σ = 84797388. Its totient is φ = 34788480.

The previous prime is 55444273. The next prime is 55444313. The reversal of 55444293 is 39244455.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55444273) and next prime (55444313).

It can be written as a sum of positive squares in 2 ways, for example, as 38155329 + 17288964 = 6177^2 + 4158^2 .

It is not a de Polignac number, because 55444293 - 2¹² = 55440197 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55444273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181038 + ... + 181343.

It is an arithmetic number, because the mean of its divisors is an integer number (7066449).

Almost surely, 2^55444293 is an apocalyptic number.

It is an amenable number.

55444293 is a deficient number, since it is larger than the sum of its proper divisors (29353095).

55444293 is a wasteful number, since it uses less digits than its factorization.

55444293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362404 (or 362401 counting only the distinct ones).

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

The square root of 55444293 is about 7446.0924651793. The cubic root of 55444293 is about 381.3165162811.

The spelling of 55444293 in words is "fifty-five million, four hundred forty-four thousand, two hundred ninety-three".