55885647 has 16 divisors (see below), whose sum is σ = 79101792. Its totient is φ = 34974720.

The previous prime is 55885603. The next prime is 55885723. The reversal of 55885647 is 74658855.

It is not a de Polignac number, because 55885647 - 2⁷ = 55885519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55885596 and 55885605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55885447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22323 + ... + 24699.

It is an arithmetic number, because the mean of its divisors is an integer number (4943862).

Almost surely, 2^55885647 is an apocalyptic number.

55885647 is a deficient number, since it is larger than the sum of its proper divisors (23216145).

55885647 is a wasteful number, since it uses less digits than its factorization.

55885647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858.

The product of its digits is 1344000, while the sum is 48.

The square root of 55885647 is about 7475.6703378359. The cubic root of 55885647 is about 382.3256431194.

The spelling of 55885647 in words is "fifty-five million, eight hundred eighty-five thousand, six hundred forty-seven".