55885247 has 8 divisors (see below), whose sum is σ = 61064400. Its totient is φ = 50722560.

The previous prime is 55885243. The next prime is 55885253. The reversal of 55885247 is 74258855.

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 55885247 - 2² = 55885243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55885198 and 55885207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55885241) 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, 3629 + ... + 11177.

It is an arithmetic number, because the mean of its divisors is an integer number (7633050).

Almost surely, 2^55885247 is an apocalyptic number.

55885247 is a deficient number, since it is larger than the sum of its proper divisors (5179153).

55885247 is a wasteful number, since it uses less digits than its factorization.

55885247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8233.

The product of its digits is 448000, while the sum is 44.

The square root of 55885247 is about 7475.6435843344. The cubic root of 55885247 is about 382.3247309555.

The spelling of 55885247 in words is "fifty-five million, eight hundred eighty-five thousand, two hundred forty-seven".