55844993 has 8 divisors (see below), whose sum is σ = 57312360. Its totient is φ = 54382720.

The previous prime is 55844959. The next prime is 55845001. The reversal of 55844993 is 39944855.

It can be written as a sum of positive squares in 4 ways, for example, as 238144 + 55606849 = 488^2 + 7457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55844993 - 2¹⁰ = 55843969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55844293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31823 + ... + 33531.

It is an arithmetic number, because the mean of its divisors is an integer number (7164045).

Almost surely, 2^55844993 is an apocalyptic number.

It is an amenable number.

55844993 is a deficient number, since it is larger than the sum of its proper divisors (1467367).

55844993 is a wasteful number, since it uses less digits than its factorization.

55844993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547.

The product of its digits is 777600, while the sum is 47.

The square root of 55844993 is about 7472.9507558929. The cubic root of 55844993 is about 382.2329130657.

The spelling of 55844993 in words is "fifty-five million, eight hundred forty-four thousand, nine hundred ninety-three".