55861853 has 4 divisors (see below), whose sum is σ = 56695680. Its totient is φ = 55028028.

The previous prime is 55861837. The next prime is 55861867. The reversal of 55861853 is 35816855.

55861853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55861853 - 2⁴ = 55861837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55861853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55861753) 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 3 ways as a sum of consecutive naturals, for example, 416813 + ... + 416946.

It is an arithmetic number, because the mean of its divisors is an integer number (14173920).

Almost surely, 2^55861853 is an apocalyptic number.

It is an amenable number.

55861853 is a deficient number, since it is larger than the sum of its proper divisors (833827).

55861853 is an equidigital number, since it uses as much as digits as its factorization.

55861853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833826.

The product of its digits is 144000, while the sum is 41.

The square root of 55861853 is about 7474.0787392160. The cubic root of 55861853 is about 382.2713754723.

The spelling of 55861853 in words is "fifty-five million, eight hundred sixty-one thousand, eight hundred fifty-three".