55844649 has 24 divisors (see below), whose sum is σ = 92386112. Its totient is φ = 31842720.

The previous prime is 55844639. The next prime is 55844651. The reversal of 55844649 is 94644855.

55844649 is a `hidden beast` number, since 5 + 584 + 4 + 64 + 9 = 666.

55844649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55844649 - 2¹³ = 55836457 is a prime.

It is a super-3 number, since 3×55844649³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (55844639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50547 + ... + 51639.

Almost surely, 2^55844649 is an apocalyptic number.

It is an amenable number.

55844649 is a deficient number, since it is larger than the sum of its proper divisors (36541463).

55844649 is a wasteful number, since it uses less digits than its factorization.

55844649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917 (or 1914 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 55844649 is about 7472.9277395141. The cubic root of 55844649 is about 382.2321282243.

The spelling of 55844649 in words is "fifty-five million, eight hundred forty-four thousand, six hundred forty-nine".