55318851 has 12 divisors (see below), whose sum is σ = 91320112. Its totient is φ = 31610736.

The previous prime is 55318807. The next prime is 55318877. The reversal of 55318851 is 15881355.

It is not a de Polignac number, because 55318851 - 2¹⁹ = 54794563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55318891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438976 + ... + 439101.

Almost surely, 2^55318851 is an apocalyptic number.

55318851 is a deficient number, since it is larger than the sum of its proper divisors (36001261).

55318851 is a wasteful number, since it uses less digits than its factorization.

55318851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878090 (or 878087 counting only the distinct ones).

The product of its digits is 24000, while the sum is 36.

The square root of 55318851 is about 7437.6643511253. The cubic root of 55318851 is about 381.0287245584.

It can be divided in two parts, 55318 and 851, that added together give a square (56169 = 237²).

The spelling of 55318851 in words is "fifty-five million, three hundred eighteen thousand, eight hundred fifty-one".