55855850 has 12 divisors (see below), whose sum is σ = 103891974. Its totient is φ = 22342320.

The previous prime is 55855759. The next prime is 55855853. The reversal of 55855850 is 5855855.

55855850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 49266361 + 6589489 = 7019^2 + 2567^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55855798 and 55855807.

It is not an unprimeable number, because it can be changed into a prime (55855853) 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 5 ways as a sum of consecutive naturals, for example, 558509 + ... + 558608.

Almost surely, 2^55855850 is an apocalyptic number.

55855850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55855850 is a deficient number, since it is larger than the sum of its proper divisors (48036124).

55855850 is a wasteful number, since it uses less digits than its factorization.

55855850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117129 (or 1117124 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 41.

The square root of 55855850 is about 7473.6771404711. The cubic root of 55855850 is about 382.2576818266.

The spelling of 55855850 in words is "fifty-five million, eight hundred fifty-five thousand, eight hundred fifty".