55944247 has 8 divisors (see below), whose sum is σ = 57403280. Its totient is φ = 54492480.

The previous prime is 55944223. The next prime is 55944253. The reversal of 55944247 is 74244955.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55944247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55941247) 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, 15997 + ... + 19177.

It is an arithmetic number, because the mean of its divisors is an integer number (7175410).

Almost surely, 2^55944247 is an apocalyptic number.

55944247 is a deficient number, since it is larger than the sum of its proper divisors (1459033).

55944247 is a wasteful number, since it uses less digits than its factorization.

55944247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633.

The product of its digits is 201600, while the sum is 40.

The square root of 55944247 is about 7479.5886919001. The cubic root of 55944247 is about 382.4592281431.

The spelling of 55944247 in words is "fifty-five million, nine hundred forty-four thousand, two hundred forty-seven".