55647845 has 8 divisors (see below), whose sum is σ = 72848160. Its totient is φ = 40471120.

The previous prime is 55647841. The next prime is 55647853. The reversal of 55647845 is 54874655.

55647845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55647845 - 2² = 55647841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55647796 and 55647805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55647841) 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 7 ways as a sum of consecutive naturals, for example, 505835 + ... + 505944.

It is an arithmetic number, because the mean of its divisors is an integer number (9106020).

Almost surely, 2^55647845 is an apocalyptic number.

55647845 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55647845 is a deficient number, since it is larger than the sum of its proper divisors (17200315).

55647845 is a wasteful number, since it uses less digits than its factorization.

55647845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011795.

The product of its digits is 672000, while the sum is 44.

The square root of 55647845 is about 7459.7483201513. The cubic root of 55647845 is about 381.7825873762.

The spelling of 55647845 in words is "fifty-five million, six hundred forty-seven thousand, eight hundred forty-five".