55444786 has 12 divisors (see below), whose sum is σ = 88128378. Its totient is φ = 26071232.

The previous prime is 55444757. The next prime is 55444787. The reversal of 55444786 is 68744455.

It can be written as a sum of positive squares in 3 ways, for example, as 55041561 + 403225 = 7419^2 + 635^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55444787) 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 5 ways as a sum of consecutive naturals, for example, 42780 + ... + 44056.

Almost surely, 2^55444786 is an apocalyptic number.

55444786 is a deficient number, since it is larger than the sum of its proper divisors (32683592).

55444786 is an equidigital number, since it uses as much as digits as its factorization.

55444786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 1296 counting only the distinct ones).

The product of its digits is 537600, while the sum is 43.

The square root of 55444786 is about 7446.1255697174. The cubic root of 55444786 is about 381.3176464755.

The spelling of 55444786 in words is "fifty-five million, four hundred forty-four thousand, seven hundred eighty-six".